https://sierra.dev.watchers.news/ https://sierra.dev.watchers.news Wed, 16 Sep 2026 08:59:00 +0000 2026/954-REVENTADOR-352010-20260916/0859Z VA ADVISORY STATUS: - DTG: 20260916/0859Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S000400 W0773900 AREA: ECUADOR SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/954 INFO SOURCE: GOES-19. WEBCAM. NWP MODELS. AVIATION COLOR CODE: - ERUPTION DETAILS: VA EMS OBSD IN WEBCAM OBS VA DTG: 16/0830Z OBS VA CLD: SFC/FL150 N000000,W0774900 S000400,W0773900 S000500,W0774000 S000400,W0775100 N000000,W0774900 FCST VA CLD +6H: SFC/FL150 N000400,W0775200 S000400,W0773900 S000500,W0773900 S000100,W0775600 N000400,W0775200 FCST VA CLD +12H: SFC/FL150 N000400,W0775200 S000400,W0773900 S000500,W0773900 S000100,W0775600 N000400,W0775200 FCST VA CLD +18H: SFC/FL150 N000200,W0775400 S000400,W0773900 S000500,W0773900 S000400,W0775700 N000200,W0775400 RMK: VA EMS VSBL IN WEBCAM BUT NOT OBSD IN STLT IMG DUE TO MET CLDS. LTLCG IN FCST THRU T+18 HRS. MVMT AND HGT BASED ON WEBCAM OBS AND NWP MDLS. ...BERTALAN NXT ADVISORY: WILL BE ISSUED BY 20260916/1500Z ]]> https://sierra.dev.watchers.news Wed, 16 Sep 2026 08:13:00 +0000 2026/543-SANTA-MARIA-342030-20260916/0813Z VA ADVISORY STATUS: - DTG: 20260916/0813Z VAAC: WASHINGTON VOLCANO: SANTA MARIA 342030 PSN: N144500 W0913300 AREA: GUATEMALA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/543 INFO SOURCE: GOES-19. NWP MODELS. AVIATION COLOR CODE: - ERUPTION DETAILS: PSBL VA EMS OBS VA DTG: 16/0740Z OBS VA CLD: SFC/FL140 N144700,W0914300 N144600,W0913200 N144400,W0913200 N144100,W0914200 N144700,W0914300 FCST VA CLD +6H: SFC/FL140 N144700,W0914700 N144600,W0913200 N144400,W0913200 N144100,W0914600 N144700,W0914700 FCST VA CLD +12H: - FCST VA CLD +18H: - RMK: VA EMS NOT OBSD IN STLT IMG PSBLY DUE TO MET CLDS. VA EMS MAY BE OBSCD. LTLCG IN FCST THRU T+6 HRS. MVMT AND HGT BASED ON NWP MDLS. ...BERTALAN NXT ADVISORY: WILL BE ISSUED BY 20260916/1415Z ]]> https://sierra.dev.watchers.news Wed, 16 Sep 2026 08:10:00 +0000 2026/759-DUKONO-268010-20260916/0810Z VA ADVISORY STATUS: - DTG: 20260916/0810Z VAAC: DARWIN VOLCANO: DUKONO 268010 PSN: N014200 E1275400 AREA: INDONESIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/759 INFO SOURCE: HIMAWARI-9 AVIATION COLOR CODE: - ERUPTION DETAILS: VA TO FL070 OBS AT 16/0710Z MOV N OBS VA DTG: 16/0810Z OBS VA CLD: SFC/FL070 N013900,E1275500 N014200,E1274900 N023200,E1275300 N021700,E1282800 MOV N 10KT FCST VA CLD +6H: SFC/FL070 N013800,E1275500 N014300,E1274900 N023100,E1280200 N020900,E1283400 FCST VA CLD +12H: SFC/FL070 N013800,E1275500 N014300,E1274900 N023100,E1280200 N020900,E1283400 FCST VA CLD +18H: SFC/FL070 N013800,E1275500 N014300,E1274900 N023100,E1280200 N020900,E1283400 RMK: VA HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20260916/1410Z= ]]> https://sierra.dev.watchers.news Wed, 16 Sep 2026 06:40:00 +0000 2026/1060-SEMERU-263300-20260916/0640Z VA ADVISORY STATUS: - DTG: 20260916/0640Z VAAC: DARWIN VOLCANO: SEMERU 263300 PSN: S080600 E1125500 AREA: INDONESIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/1060 INFO SOURCE: HIMAWARI-9, CVGHM AVIATION COLOR CODE: - ERUPTION DETAILS: VA TO FL150 REP AT 16/0340Z, MOV SE OBS VA DTG: 16/0620Z OBS VA CLD: SFC/FL150 S080700,E1125200 S080300,E1125400 S080000,E1130300 S080700,E1132200 S083000,E1130900 MOV SE 10KT FCST VA CLD +6H: SFC/FL150 S080700,E1125200 S080300,E1125400 S080000,E1130300 S080700,E1132200 S083000,E1130900 FCST VA CLD +12H: SFC/FL150 S080700,E1125200 S080300,E1125400 S080000,E1130300 S080700,E1132200 S083000,E1130900 FCST VA CLD +18H: SFC/FL150 S080700,E1125200 S080300,E1125400 S080000,E1130300 S080700,E1132200 S083000,E1130900 RMK: VA NOT IDENTIFIABLE ON RECENT SATELLITE IMAGERY DUE TO MET CLOUD. HOWEVER, DISCRETE EMISSIONS ARE EXPECTED TO BE ONGOING. HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY, GROUND REPORTS AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20260916/1240Z= ]]> https://sierra.dev.watchers.news Wed, 16 Sep 2026 05:44:00 +0000 2026/1082-FUEGO-342090-20260916/0544Z VA ADVISORY STATUS: - DTG: 20260916/0544Z VAAC: WASHINGTON VOLCANO: FUEGO 342090 PSN: N142800 W0905200 AREA: GUATEMALA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/1082 INFO SOURCE: GOES-19. WEBCAM. NWP MODELS. AVIATION COLOR CODE: - ERUPTION DETAILS: VA EMS OBSD IN WEBCAM OBS VA DTG: 16/0510Z OBS VA CLD: SFC/FL160 N142900,W0905200 N142800,W0905200 N142200,W0910100 N142700,W0910400 N142900,W0905200 FCST VA CLD +6H: SFC/FL160 N143000,W0910800 N142900,W0905300 N142800,W0905200 N142300,W0910700 N143000,W0910800 FCST VA CLD +12H: SFC/FL160 N143100,W0910800 N142900,W0905300 N142800,W0905200 N142300,W0910600 N143100,W0910800 FCST VA CLD +18H: SFC/FL160 N142900,W0905200 N142800,W0905200 N142200,W0910500 N142800,W0910800 N142900,W0905200 RMK: VA EMS OBSD IN WEBCAM BUT NOT VSBL IN STLT IMG. A MORE W MVMT EXP BY T+6 HRS. MVMT AND HGT BASED ON WEBCAM OBS AND NWP MDLS. ...BERTALAN NXT ADVISORY: WILL BE ISSUED BY 20260916/1145Z ]]> https://sierra.dev.watchers.news Wed, 16 Sep 2026 05:30:00 +0000 2026/240-LEWOTOLOK-264230-20260916/0530Z VA ADVISORY STATUS: - DTG: 20260916/0530Z VAAC: DARWIN VOLCANO: LEWOTOLOK 264230 PSN: S081600 E1233000 AREA: INDONESIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/240 INFO SOURCE: HIMAWARI-9, CVGHM AVIATION COLOR CODE: - ERUPTION DETAILS: VA TO FL060 OBS AT 16/0500Z MOV NW OBS VA DTG: 16/0510Z OBS VA CLD: SFC/FL060 S081900,E1233200 S081100,E1224400 S074500,E1225500 S081400,E1233400 MOV NW 15KT FCST VA CLD +6H: SFC/FL060 S081900,E1233200 S081700,E1224400 S074900,E1225300 S081400,E1233400 FCST VA CLD +12H: SFC/FL060 S081900,E1233200 S081700,E1224400 S074900,E1225300 S081400,E1233400 FCST VA CLD +18H: SFC/FL060 S081900,E1233200 S081700,E1224400 S074900,E1225300 S081400,E1233400 RMK: VA HEIGHT AND MOVEMENT BASED ON HIMAWARI-9 IMAGERY, GROUND REPORTS AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20260916/1130Z= ]]> https://sierra.dev.watchers.news Wed, 16 Sep 2026 04:26:00 +0000 2026/522-PURACE-351060-20260916/0426Z VA ADVISORY STATUS: - DTG: 20260916/0426Z VAAC: WASHINGTON VOLCANO: PURACE 351060 PSN: N021900 W0762400 AREA: COLOMBIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/522 INFO SOURCE: GOES-19. NWP MODELS. AVIATION COLOR CODE: - ERUPTION DETAILS: NO VA EMS OBSD OBS VA DTG: 16/0350Z OBS VA CLD: - FCST VA CLD +6H: - FCST VA CLD +12H: - FCST VA CLD +18H: - RMK: VA EMS NOT VSBL IN STLT IMG. NO RCNT RPTS OF VA EMS RCVD. ...BERTALAN NXT ADVISORY: NO FURTHER ADVISORIES ]]> https://sierra.dev.watchers.news Wed, 16 Sep 2026 04:10:00 +0000 2026/1051-IBU-268030-20260916/0410Z VA ADVISORY STATUS: - DTG: 20260916/0410Z VAAC: DARWIN VOLCANO: IBU 268030 PSN: N012900 E1273800 AREA: INDONESIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/1051 INFO SOURCE: HIMAWARI-9, CVGHM AVIATION COLOR CODE: - ERUPTION DETAILS: VA TO FL080 LAST OBS AT 15/2140Z MOV NE OBS VA DTG: 16/0350Z OBS VA CLD: SFC/FL080 N012600,E1273800 N013100,E1273500 N020500,E1275400 N013800,E1281800 MOV NE 10KT FCST VA CLD +6H: SFC/FL080 N012600,E1273800 N013100,E1273400 N020500,E1275400 N013800,E1281800 FCST VA CLD +12H: SFC/FL080 N012600,E1273800 N013100,E1273500 N020500,E1275400 N013800,E1281800 FCST VA CLD +18H: SFC/FL080 N012600,E1273800 N013100,E1273400 N020500,E1275400 N013800,E1281800 RMK: VA NOT IDENTIFIABLE ON CURRENT SATELLITE IMAGERY DUE TO MET CLOUD. HOWEVER, DISCRETE EMISSIONS ARE EXPECTED TO BE ONGOING. HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY, GROUND REPORTS AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20260916/1010Z= ]]> https://sierra.dev.watchers.news Wed, 16 Sep 2026 04:00:00 +0000 2026/161-ETNA-211060-20260916/0400Z VA ADVISORY STATUS: - DTG: 20260916/0400Z VAAC: TOULOUSE VOLCANO: ETNA 211060 PSN: N374400 E0145900 AREA: SICILY VOLCANIC PROVINCE SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/161 INFO SOURCE: SAT IMG, WEBCAMS AVIATION COLOR CODE: orange ERUPTION DETAILS: ERUPTION AT 20260914/0240Z WEAK ERUPTION ONGOING OBS VA DTG: 16/0400Z OBS VA CLD: SFC/FL130 N374800,E0145700 N374800,E0150600 N374200,E0150600 N374200,E0145700 N374800,E0145700 MOV S 10KT FCST VA CLD +6H: SFC/FL130 N372700,E0144500 N375300,E0145400 N375100,E0150600 N372700,E0150300 N372700,E0144500 FCST VA CLD +12H: SFC/FL130 N372300,E0144500 N375100,E0145400 N375100,E0150900 N372300,E0150900 N372300,E0144500 FCST VA CLD +18H: SFC/FL130 N372100,E0144800 N375100,E0145400 N375100,E0150900 N372100,E0150300 N372100,E0144800 RMK: WEAK ASH CLOUD IN THE VICINITY OF THE VOLCANO. DUE TO THE LOW INTENSITY OF THE EVENT, QVA ARE NOT PROVIDED. NXT ADVISORY: NO LATER THAN 20260916/1000Z= ]]> https://sierra.dev.watchers.news Wed, 16 Sep 2026 03:25:00 +0000 2026/338-POPOCATEPETL-341090-20260916/0325Z VA ADVISORY STATUS: - DTG: 20260916/0325Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N190100 W0983700 AREA: MEXICO SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/338 INFO SOURCE: GOES-19. NWP MODELS. AVIATION COLOR CODE: - ERUPTION DETAILS: PSBL VA EMS OBS VA DTG: 16/0311Z OBS VA CLD: SFC/FL210 N190900,W0984600 N190200,W0983600 N190000,W0983700 N190200,W0985100 N190900,W0984600 FCST VA CLD +6H: SFC/FL210 N191100,W0985300 N190200,W0983700 N190000,W0983700 N190400,W0985800 N191100,W0985300 FCST VA CLD +12H: - FCST VA CLD +18H: - RMK: VA EMS NOT OBSD IN STLT IMG PSBLY DUE TO MET CLDS. VA EMS MAY BE OBSCD. LTLCG IN FCST THRU T+6 HRS. MVMT AND HGT BASED ON NWP MDLS. ...BERTALAN NXT ADVISORY: WILL BE ISSUED BY 20260916/0930Z ]]> https://sierra.dev.watchers.news Wed, 16 Sep 2026 02:58:00 +0000 2026/953-REVENTADOR-352010-20260916/0258Z VA ADVISORY STATUS: - DTG: 20260916/0258Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S000400 W0773900 AREA: ECUADOR SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/953 INFO SOURCE: GOES-19. VONA. WEBCAM. NWP MODELS. AVIATION COLOR CODE: - ERUPTION DETAILS: VA EMS OBSD IN WEBCAM OBS VA DTG: 16/0230Z OBS VA CLD: SFC/FL150 S000100,W0774900 S000400,W0773900 S000500,W0774000 S000500,W0774900 S000100,W0774900 FCST VA CLD +6H: SFC/FL150 N00000,W0775200 S000400,W0773900 S000500,W0774000 S000400,W0775200 N00000,W0775200 FCST VA CLD +12H: SFC/FL150 N000200,W0774900 S000400,W0773900 S000500,W0773900 S000100,W0775200 N000200,W0774900 FCST VA CLD +18H: SFC/FL150 N00000,W0775200 S000400,W0773900 S000500,W0773900 S000500,W0775300 N00000,W0775200 RMK: VA EMS VSBL IN WEBCAM BUT NOT OBSD IN STLT IMG DUE TO MET CLDS. WNW MVMT EXP TO SHIFT NW BY T+12 HRS. MVMT AND HGT BASED ON VONA, WEBCAM OBS AND NWP MDLS. ...BERTALAN NXT ADVISORY: WILL BE ISSUED BY 20260916/0900Z ]]> https://sierra.dev.watchers.news Wed, 16 Sep 2026 02:50:00 +0000 2026/202-SAKURAJIMA-[AIRA-CALDERA]-282080-20260916/0250Z VA ADVISORY STATUS: - DTG: 20260916/0250Z VAAC: TOKYO VOLCANO: SAKURAJIMA [AIRA CALDERA] 282080 PSN: N313600 E1303900 AREA: JAPAN SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/202 INFO SOURCE: HIMAWARI-9 AVIATION COLOR CODE: - ERUPTION DETAILS: VA IS NOT IDENTIFIABLE IN SATELLITE IMAGERY. OBS VA DTG: 16/0220Z OBS VA CLD: - FCST VA CLD +6H: - FCST VA CLD +12H: - FCST VA CLD +18H: - RMK: VA IS NOT IDENTIFIABLE DUE TO MET CLOUD OR HAS DISSIPATED. WE WILL ISSUE FURTHER ADVISORY IF VA DETECTED IN SATELLITE IMAGERY. NXT ADVISORY: NO FURTHER ADVISORIES= ]]> https://sierra.dev.watchers.news Wed, 16 Sep 2026 02:19:00 +0000 2026/542-SANTA-MARIA-342030-20260916/0219Z VA ADVISORY STATUS: - DTG: 20260916/0219Z VAAC: WASHINGTON VOLCANO: SANTA MARIA 342030 PSN: N144500 W0913300 AREA: GUATEMALA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/542 INFO SOURCE: GOES-19. NWP MODELS. AVIATION COLOR CODE: - ERUPTION DETAILS: PSBL VA EMS OBS VA DTG: 16/0150Z OBS VA CLD: SFC/FL140 N144600,W0914300 N144600,W0913300 N144500,W0913200 N144100,W0914100 N144600,W0914300 FCST VA CLD +6H: SFC/FL140 N144600,W0914700 N144600,W0913200 N144500,W0913200 N144100,W0914600 N144600,W0914700 FCST VA CLD +12H: SFC/FL140 N144900,W0914700 N144600,W0913200 N144400,W0913200 N144200,W0914700 N144900,W0914700 FCST VA CLD +18H: - RMK: VA EMS NOT OBSD IN STLT IMG PSBLY DUE TO MET CLDS. VA EMS MAY BE OBSCD. A MORE W MVMT EXP BY T+12 HRS. MVMT AND HGT BASED ON NWP MDLS. ...BERTALAN NXT ADVISORY: WILL BE ISSUED BY 20260916/0815Z ]]> https://sierra.dev.watchers.news Wed, 16 Sep 2026 02:10:00 +0000 2026/758-DUKONO-268010-20260916/0210Z VA ADVISORY STATUS: - DTG: 20260916/0210Z VAAC: DARWIN VOLCANO: DUKONO 268010 PSN: N014200 E1275400 AREA: INDONESIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/758 INFO SOURCE: HIMAWARI-9 AVIATION COLOR CODE: - ERUPTION DETAILS: VA TO FL070 OBS AT 16/0150 EXT NE OBS VA DTG: 16/0150Z OBS VA CLD: SFC/FL070 N013800,E1275500 N014200,E1274900 N023500,E1280000 N021500,E1283800 MOV NE 10KT FCST VA CLD +6H: SFC/FL070 N013900,E1275500 N014300,E1274900 N023400,E1280900 N020600,E1284100 FCST VA CLD +12H: SFC/FL070 N013800,E1275500 N014300,E1274900 N023300,E1280900 N020600,E1284100 FCST VA CLD +18H: SFC/FL070 N013800,E1275500 N014300,E1274900 N023400,E1280900 N020600,E1284100 RMK: VA HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20260916/0810Z= ]]> https://sierra.dev.watchers.news Wed, 16 Sep 2026 00:30:00 +0000 2026/1059-SEMERU-263300-20260916/0030Z VA ADVISORY STATUS: - DTG: 20260916/0030Z VAAC: DARWIN VOLCANO: SEMERU 263300 PSN: S080600 E1125500 AREA: INDONESIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/1059 INFO SOURCE: HIMAWARI-9, CVGHM AVIATION COLOR CODE: - ERUPTION DETAILS: VA TO FL150 REP AT 15/2210, MOV E OBS VA DTG: 16/0010Z OBS VA CLD: SFC/FL150 S080700,E1125200 S080300,E1125400 S080000,E1130300 S080400,E1132300 S082800,E1131200 MOV E 10KT FCST VA CLD +6H: SFC/FL150 S080700,E1125200 S080300,E1125400 S080000,E1130300 S080700,E1132200 S083000,E1130900 FCST VA CLD +12H: SFC/FL150 S080700,E1125200 S080300,E1125400 S080000,E1130600 S080700,E1132200 S083000,E1130900 FCST VA CLD +18H: SFC/FL150 S080700,E1125200 S080300,E1125400 S080000,E1130300 S080700,E1132200 S083000,E1130900 RMK: VA NOT IDENTIFIABLE ON RECENT SATELLITE IMAGERY DUE TO MET CLOUD. HOWVERE, DISCRETE EMISSIONS ARE EXPECTED TO BE ONGOING. HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY, GROUND REPORTS AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20260916/0630Z= ]]> https://sierra.dev.watchers.news Wed, 16 Sep 2026 00:00:00 +0000 2026/239-LEWOTOLOK-264230-20260916/0000Z VA ADVISORY STATUS: - DTG: 20260916/0000Z VAAC: DARWIN VOLCANO: LEWOTOLOK 264230 PSN: S081600 E1233000 AREA: INDONESIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/239 INFO SOURCE: HIMAWARI-9, CVGHM AVIATION COLOR CODE: - ERUPTION DETAILS: VA TO FL060 OBS AT 15/2340Z MOV NW OBS VA DTG: 15/2340Z OBS VA CLD: SFC/FL060 S081900,E1233200 S081600,E1224200 S075300,E1224200 S074100,E1230000 S081400,E1233400 MOV NW 15KT FCST VA CLD +6H: SFC/FL060 S081900,E1233200 S081600,E1224200 S075300,E1224200 S074100,E1230000 S081400,E1233400 FCST VA CLD +12H: SFC/FL060 S081900,E1233200 S081600,E1224200 S075300,E1224200 S074100,E1230000 S081400,E1233400 FCST VA CLD +18H: SFC/FL060 S081900,E1233200 S081600,E1224200 S075300,E1224200 S074100,E1230000 S081400,E1233400 RMK: VA HEIGHT AND MOVEMENT BASED ON HIMAWARI-9 IMAGERY, GROUND REPORTS AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20260916/0600Z= ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 23:39:00 +0000 2026/1081-FUEGO-342090-20260915/2339Z VA ADVISORY STATUS: - DTG: 20260915/2339Z VAAC: WASHINGTON VOLCANO: FUEGO 342090 PSN: N142800 W0905200 AREA: GUATEMALA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/1081 INFO SOURCE: GOES-19. WEBCAM. NWP MODELS. AVIATION COLOR CODE: - ERUPTION DETAILS: ONGOING VA EMS OBS VA DTG: 15/2300Z OBS VA CLD: SFC/FL160 N142800,W0905200 N142800,W0905200 N142100,W0910700 N142600,W0910800 N142800,W0905200 FCST VA CLD +6H: SFC/FL160 N142800,W0905300 N142800,W0905200 N142000,W0910600 N142400,W0910800 N142800,W0905300 FCST VA CLD +12H: SFC/FL160 N142800,W0905200 N142800,W0905200 N142200,W0910700 N142600,W0910800 N142800,W0905200 FCST VA CLD +18H: SFC/FL160 N142800,W0905300 N142700,W0905200 N142200,W0910800 N142700,W0910800 N142800,W0905300 RMK: VA EMS OBS IN WEBCAM. VA NOT VIS IN STLT IMG DUE TO MET CLD CVR. MDL WINDS SUG WSW MVMT THRU T+18. ...GATLING NXT ADVISORY: WILL BE ISSUED BY 20260916/0545Z ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 23:03:00 +0000 2026/201-SAKURAJIMA-[AIRA-CALDERA]-282080-20260915/2303Z VA ADVISORY STATUS: - DTG: 20260915/2303Z VAAC: TOKYO VOLCANO: SAKURAJIMA [AIRA CALDERA] 282080 PSN: N313600 E1303900 AREA: JAPAN SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/201 INFO SOURCE: JMA HIMAWARI-9 AVIATION COLOR CODE: - ERUPTION DETAILS: ERUPTED AT 20260915/2131Z FL110 EXTD NE OBS VA DTG: 15/2240Z OBS VA CLD: SFC/FL110 N314000,E1304100 N314300,E1305200 N313900,E1305400 N313600,E1304300 MOV NE 20KT FCST VA CLD +6H: SFC/FL120 N323100,E1320300 N320900,E1320300 N314900,E1311800 N314200,E1302500 N320400,E1302200 N320500,E1310600 FCST VA CLD +12H: SFC/FL130 N330500,E1331900 N324500,E1333000 N313700,E1313600 N315800,E1300300 N321700,E1300800 N321500,E1311900 FCST VA CLD +18H: - RMK: SOME PART OF VA OBSCURED BY MET CLOUD. NXT ADVISORY: 20260916/0300Z= ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 22:24:00 +0000 2026/521-PURACE-351060-20260915/2224Z VA ADVISORY STATUS: - DTG: 20260915/2224Z VAAC: WASHINGTON VOLCANO: PURACE 351060 PSN: N021900 W0762400 AREA: COLOMBIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/521 INFO SOURCE: GOES-19. NWP MODELS. AVIATION COLOR CODE: - ERUPTION DETAILS: PSBL VA EMS OBS VA DTG: 15/2150Z OBS VA CLD: SFC/FL160 N022400,W0763200 N021900,W0762300 N021900,W0762300 N022100,W0763400 N022400,W0763200 FCST VA CLD +6H: SFC/FL160 N022300,W0763300 N021900,W0762300 N021900,W0762300 N022000,W0763400 N022300,W0763300 FCST VA CLD +12H: - FCST VA CLD +18H: - RMK: VA NOT DETECTED IN STLT IMG MAYBE DUE TO MET CLDS. NO RPRTS OF VA EMS RCVD BUT VA EMS REMAIN PSBL. MDL WINDS SUG WNW MVMT THRU T+6. FCST CONFIDENCE LOW. ...GATLING NXT ADVISORY: WILL BE ISSUED BY 20260916/0430Z ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 22:00:00 +0000 2026/1050-IBU-268030-20260915/2200Z VA ADVISORY STATUS: - DTG: 20260915/2200Z VAAC: DARWIN VOLCANO: IBU 268030 PSN: N012900 E1273800 AREA: INDONESIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/1050 INFO SOURCE: HIMAWARI-9, CVGHM AVIATION COLOR CODE: - ERUPTION DETAILS: VA TO FL080 LAST OBS AT 15/1130Z MOV NE OBS VA DTG: 15/2140Z OBS VA CLD: SFC/FL080 N012600,E1273700 N013100,E1273500 N020400,E1280300 N013100,E1282100 MOV NE 10KT FCST VA CLD +6H: SFC/FL080 N012600,E1273800 N013100,E1273500 N020500,E1275400 N013800,E1281800 FCST VA CLD +12H: SFC/FL080 N012600,E1273800 N013100,E1273400 N020500,E1275400 N013700,E1281800 FCST VA CLD +18H: SFC/FL080 N012600,E1273800 N013100,E1273400 N020500,E1275400 N013700,E1281800 RMK: VA NOT IDENTIFIABLE ON CURRENT SATELLITE IMAGERY DUE TO MET CLOUD. HOWEVER, DISCRETE EMISSIONS ARE EXPECTED TO BE ONGOING. HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY, GROUND REPORTS AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20260916/0400Z= ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 22:00:00 +0000 2026/159-ETNA-211060-20260915/2200Z VA ADVISORY STATUS: - DTG: 20260915/2200Z VAAC: TOULOUSE VOLCANO: ETNA 211060 PSN: N374400 E0145900 AREA: SICILY VOLCANIC PROVINCE SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/159 INFO SOURCE: VONA INGV, SAT IMG, WEBCAMS AVIATION COLOR CODE: orange ERUPTION DETAILS: ERUPTION AT 20260914/0240Z WEAK ERUPTION ONGOING OBS VA DTG: 15/2200Z OBS VA CLD: SFC/FL130 N375100,E0145700 N375100,E0150600 N373800,E0150900 N373800,E0145400 N375100,E0145700 MOV S 8KT FCST VA CLD +6H: SFC/FL130 N372300,E0143900 N375700,E0144800 N375700,E0151200 N374500,E0151200 N372100,E0150300 N372300,E0143900 FCST VA CLD +12H: SFC/FL130 N372300,E0143900 N375700,E0144800 N375700,E0151200 N374500,E0151200 N372100,E0150300 N372300,E0143900 FCST VA CLD +18H: SFC/FL130 N372300,E0143900 N375700,E0144800 N375700,E0151200 N374500,E0151200 N372100,E0150300 N372300,E0143900 RMK: WEAK ASH CLOUD IN THE VICINITY OF THE VOLCANO. DUE TO THE LOW INTENSITY OF THE EVENT, QVA ARE NOT PROVIDED. NXT ADVISORY: NO LATER THAN 20260916/0400Z= ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 21:46:00 +0000 2026/200-SAKURAJIMA-[AIRA-CALDERA]-282080-20260915/2146Z VA ADVISORY STATUS: - DTG: 20260915/2146Z VAAC: TOKYO VOLCANO: SAKURAJIMA [AIRA CALDERA] 282080 PSN: N313600 E1303900 AREA: JAPAN SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/200 INFO SOURCE: JMA HIMAWARI-9 AVIATION COLOR CODE: - ERUPTION DETAILS: ERUPTED AT 20260915/2131Z FL110 EXTD NE OBS VA DTG: 15/2130Z OBS VA CLD: - FCST VA CLD +6H: - FCST VA CLD +12H: - FCST VA CLD +18H: - RMK: WE WILL ISSUE FURTHER ADVISORY IF VA IS DETECTED IN SATELLITE IMAGERY. NXT ADVISORY: NO FURTHER ADVISORIES= ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 21:37:00 +0000 2026/337-POPOCATEPETL-341090-20260915/2137Z VA ADVISORY STATUS: - DTG: 20260915/2137Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N190100 W0983700 AREA: MEXICO SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/337 INFO SOURCE: GOES-19. WEBCAM. NWP MODELS. AVIATION COLOR CODE: - ERUPTION DETAILS: DISCRETE VA EMS OBS VA DTG: 15/2126Z OBS VA CLD: SFC/FL210 N192000,W0991400 N191800,W0991000 N191400,W0991200 N191500,W0991700 N192000,W0991400 FCST VA CLD +6H: SFC/FL210 N191600,W0991600 N190200,W0983700 N190100,W0983700 N190800,W0991900 N191600,W0991600 FCST VA CLD +12H: - FCST VA CLD +18H: - RMK: VA EMS OBS IN WEBCAM AND STLT IMG EXT APRX 40NM WNW FM SUMMIT. WNW MVMT EXP THRU T+6. FCST BASED ON STLT AND MDL WINDS. ...GATLING NXT ADVISORY: WILL BE ISSUED BY 20260916/0330Z ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 21:09:00 +0000 2026/952-REVENTADOR-352010-20260915/2109Z VA ADVISORY STATUS: - DTG: 20260915/2109Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S000400 W0773900 AREA: ECUADOR SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/952 INFO SOURCE: GOES-19. WEBCAM. NWP MODELS. AVIATION COLOR CODE: - ERUPTION DETAILS: INTMT VA EMS OBS VA DTG: 15/2040Z OBS VA CLD: SFC/FL140 S000200,W0775000 S000400,W0773900 S000500,W0773900 S000500,W0774600 S000200,W0775000 FCST VA CLD +6H: SFC/FL140 S000100,W0775000 S000400,W0773900 S000500,W0774000 S000300,W0775000 S000100,W0775000 FCST VA CLD +12H: SFC/FL140 N00000,W0774900 S000400,W0773900 S000500,W0773900 S000200,W0775000 N00000,W0774900 FCST VA CLD +18H: SFC/FL140 N000000,W0774900 S000400,W0773900 S000500,W0773900 S000100,W0775000 N000000,W0774900 RMK: SML VA EMS OBS IN WEBCAM AND STLT IMG EXT APRX 10NM W FM SUMMIT. WNW MVMT EXP BY T+18. FCST BASED ON STLT AND MDL WINDS. ...GATLING NXT ADVISORY: WILL BE ISSUED BY 20260916/0315Z ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 20:24:00 +0000 2026/541-SANTA-MARIA-342030-20260915/2024Z VA ADVISORY STATUS: - DTG: 20260915/2024Z VAAC: WASHINGTON VOLCANO: SANTA MARIA 342030 PSN: N144500 W0913300 AREA: GUATEMALA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/541 INFO SOURCE: GOES-19. NWP MODELS. AVIATION COLOR CODE: - ERUPTION DETAILS: OCNL VA EMS OBS VA DTG: 15/1950Z OBS VA CLD: SFC/FL140 N144600,W0913200 N144500,W0913200 N144100,W0914400 N144600,W0914500 N144600,W0913200 FCST VA CLD +6H: SFC/FL140 N144600,W0913200 N144500,W0913200 N143900,W0914300 N144200,W0914400 N144600,W0913200 FCST VA CLD +12H: SFC/FL140 N144600,W0913200 N144500,W0913200 N144000,W0914400 N144400,W0914500 N144600,W0913200 FCST VA CLD +18H: SFC/FL140 N144600,W0913200 N144500,W0913200 N144100,W0914400 N144400,W0914500 N144600,W0913200 RMK: VA NOT CRNTLY DETECTED IN STLT IMG. VA EMS LIKELY CONT BASED ON RCNT ACT. MDL WINDS SUG A GEN W MVMT THU T+18. ...GATLING NXT ADVISORY: WILL BE ISSUED BY 20260916/0230Z ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 20:10:00 +0000 2026/757-DUKONO-268010-20260915/2010Z VA ADVISORY STATUS: - DTG: 20260915/2010Z VAAC: DARWIN VOLCANO: DUKONO 268010 PSN: N014200 E1275400 AREA: INDONESIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/757 INFO SOURCE: HIMAWARI-9 AVIATION COLOR CODE: - ERUPTION DETAILS: VA TO FL070 OBS AT 15/1940Z EXT NE OBS VA DTG: 15/1940Z OBS VA CLD: SFC/FL070 N013800,E1275600 N014100,E1274800 N023600,E1274800 N023700,E1281500 N021900,E1283400 MOV NE 15KT FCST VA CLD +6H: SFC/FL070 N013700,E1275500 N014200,E1274900 N023400,E1280400 N023000,E1283300 N020500,E1284700 FCST VA CLD +12H: SFC/FL070 N013700,E1275400 N014300,E1274800 N023300,E1281200 N022400,E1284100 N015200,E1285000 FCST VA CLD +18H: SFC/FL070 N013700,E1275300 N014200,E1274800 N023400,E1280600 N022700,E1283400 N020100,E1284600 RMK: VA IDENTIFIABLE ON CURRENT SATELLITE IMAGERY. HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20260916/0210Z= ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 18:30:00 +0000 2026/1058-SEMERU-263300-20260915/1830Z VA ADVISORY STATUS: - DTG: 20260915/1830Z VAAC: DARWIN VOLCANO: SEMERU 263300 PSN: S080600 E1125500 AREA: INDONESIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/1058 INFO SOURCE: HIMAWARI-9, CVGHM AVIATION COLOR CODE: - ERUPTION DETAILS: VA TO FL150 REP FM GND AT 15/1734Z, MOV E OBS VA DTG: 15/1800Z OBS VA CLD: SFC/FL150 S080700,E1125200 S080200,E1125400 S080300,E1130600 S080800,E1132400 S082100,E1132400 S082800,E1131300 FCST VA CLD +6H: SFC/FL150 S080700,E1125200 S080300,E1125400 S080200,E1130500 S080400,E1132300 S081900,E1132500 S082800,E1131200 FCST VA CLD +12H: SFC/FL150 S080700,E1125200 S080100,E1125500 S080600,E1132400 S082100,E1132300 S083000,E1130900 FCST VA CLD +18H: SFC/FL150 S080700,E1125200 S080200,E1125300 S080000,E1130600 S080500,E1132500 S081800,E1132500 S083000,E1130900 RMK: VA NOT IDENTIFIABLE ON RECENT SATELLITE IMAGERY DUE TO MET CLOUD. HOWVERE, DISCRETE EMISSIONS ARE EXPECTED TO BE ONGOING. HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY, GROUND REPORTS AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20260916/0030Z= ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 18:00:00 +0000 2026/238-LEWOTOLOK-264230-20260915/1800Z VA ADVISORY STATUS: - DTG: 20260915/1800Z VAAC: DARWIN VOLCANO: LEWOTOLOK 264230 PSN: S081600 E1233000 AREA: INDONESIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/238 INFO SOURCE: HIMAWARI-9, CVGHM AVIATION COLOR CODE: - ERUPTION DETAILS: VA TO FL060 MOV W REP FM GND AT 15/1059Z OBS VA DTG: 15/1730Z OBS VA CLD: SFC/FL060 S081400,E1233300 S081900,E1233100 S081700,E1224100 S075800,E1223900 S074500,E1225300 MOV NW 20KT FCST VA CLD +6H: SFC/FL060 S081900,E1233200 S081600,E1224200 S075300,E1224200 S074100,E1230000 S081400,E1233400 FCST VA CLD +12H: SFC/FL060 S081800,E1233300 S082900,E1224700 S080800,E1223900 S074800,E1225400 S081400,E1233300 FCST VA CLD +18H: SFC/FL060 S081900,E1233200 S082100,E1224200 S075700,E1224100 S074300,E1225900 S081400,E1233400 RMK: VA NOT IDENTIFIABLE ON CURRENT SATELLITE IMAGERY. HOWEVER, GROUND REPORT INDICATES ONGOING EMISSIONS. HEIGHT AND MOVEMENT BASED ON GROUND REPORTS AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20260916/0000Z= ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 17:38:00 +0000 2026/1080-FUEGO-342090-20260915/1738Z VA ADVISORY STATUS: - DTG: 20260915/1738Z VAAC: WASHINGTON VOLCANO: FUEGO 342090 PSN: N142800 W0905200 AREA: GUATEMALA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/1080 INFO SOURCE: GOES-19. WEBCAM. NWP MODELS. AVIATION COLOR CODE: - ERUPTION DETAILS: FREQUENT VA EMS OBS VA DTG: 15/1710Z OBS VA CLD: SFC/FL160 N143500,W0912300 N142800,W0905200 N142800,W0905200 N142300,W0911700 N143500,W0912300 FCST VA CLD +6H: SFC/FL160 N142800,W0905200 N142800,W0905200 N141800,W0911400 N142600,W0911700 N142800,W0905200 FCST VA CLD +12H: SFC/FL160 N142800,W0905300 N142800,W0905200 N141800,W0911400 N142600,W0911700 N142800,W0905300 FCST VA CLD +18H: SFC/FL160 N142800,W0905200 N142800,W0905200 N141500,W0911300 N142100,W0911600 N142800,W0905200 RMK: VA EMS OBS IN WEBCAM AND STLT IMG EXT APRX 25NM W FM SUMMIT. MVMT EXP TO SHIFT SW BY T+18. FCST BASED ON STLT AND MDL WINDS. ...GATLING NXT ADVISORY: WILL BE ISSUED BY 20260915/2345Z ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 17:00:00 +0000 2026/159-ETNA-211060-20260915/1700Z VA ADVISORY STATUS: - DTG: 20260915/1700Z VAAC: TOULOUSE VOLCANO: ETNA 211060 PSN: N374400 E0145900 AREA: SICILY VOLCANIC PROVINCE SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/159 INFO SOURCE: VONA INGV, SAT IMG, WEBCAMS AVIATION COLOR CODE: orange ERUPTION DETAILS: ERUPTION AT 20260914/0240Z WEAK ONGOING ERUPTION OBS VA DTG: 15/1700Z OBS VA CLD: - FCST VA CLD +6H: SFC/FL130 N372300,E0144200 N374500,E0150000 N372100,E0150000 N372300,E0144200 FCST VA CLD +12H: - FCST VA CLD +18H: - RMK: AVIATION COLOR CODE DOWNGRADE TO ORANGE. ASH PLUME DRIFTING SOUTHWARDS REPORTED BY INGV OBSERATORY. DUE TO THE LOW INTENSITY OF THE EVENT, QVA ARE NOT PROVIDED. NXT ADVISORY: NO LATER THAN 20260915/2200Z= ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 16:25:00 +0000 2026/520-PURACE-351060-20260915/1625Z VA ADVISORY STATUS: - DTG: 20260915/1625Z VAAC: WASHINGTON VOLCANO: PURACE 351060 PSN: N021900 W0762400 AREA: COLOMBIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/520 INFO SOURCE: GOES-19. VONA. NWP MODELS. AVIATION COLOR CODE: - ERUPTION DETAILS: VA EMS RPRTD OBS VA DTG: 15/1550Z OBS VA CLD: SFC/FL160 N022200,W0763300 N021900,W0762300 N021900,W0762300 N022000,W0763400 N022200,W0763300 FCST VA CLD +6H: SFC/FL160 N022300,W0763200 N021900,W0762300 N021900,W0762300 N022000,W0763400 N022300,W0763200 FCST VA CLD +12H: - FCST VA CLD +18H: - RMK: VONA RPRT RCVD FR VA EMS. VA NOT DETECTED IN STLT IMG. MDL WINDS SUG WNW MVMT THRU T+6. FCST CONFIDENCE LOW. ...GATLING NXT ADVISORY: WILL BE ISSUED BY 20260915/2230Z ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 16:02:00 +0000 2026/199-SAKURAJIMA-[AIRA-CALDERA]-282080-20260915/1602Z VA ADVISORY STATUS: - DTG: 20260915/1602Z VAAC: TOKYO VOLCANO: SAKURAJIMA [AIRA CALDERA] 282080 PSN: N313600 E1303900 AREA: JAPAN SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/199 INFO SOURCE: JMA HIMAWARI-9 AVIATION COLOR CODE: - ERUPTION DETAILS: ERUPTED AT 20260915/1522Z FL080 EXTD NE OBS VA DTG: 15/1540Z OBS VA CLD: - FCST VA CLD +6H: - FCST VA CLD +12H: - FCST VA CLD +18H: - RMK: WE WILL ISSUE FURTHER ADVISORY IF VA IS DETECTED IN SATELLITE IMAGERY. NXT ADVISORY: NO FURTHER ADVISORIES= ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 16:00:00 +0000 2026/1049-IBU-268030-20260915/1600Z VA ADVISORY STATUS: - DTG: 20260915/1600Z VAAC: DARWIN VOLCANO: IBU 268030 PSN: N012900 E1273800 AREA: INDONESIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/1049 INFO SOURCE: HIMAWARI-9, CVGHM AVIATION COLOR CODE: - ERUPTION DETAILS: DISCRETE VA EMISSIONS OBS AT 15/1130Z, MOV OBS VA DTG: 15/1530Z OBS VA CLD: SFC/FL080 N012600,E1273700 N013100,E1273400 N020400,E1280100 N015300,E1282000 N013400,E1282000 MOV NE 15KT FCST VA CLD +6H: SFC/FL080 N012600,E1273700 N013100,E1273500 N020400,E1280300 N015100,E1282000 N013100,E1282100 FCST VA CLD +12H: SFC/FL080 N012600,E1273800 N013100,E1273500 N020400,E1280200 N015300,E1282000 N013300,E1282000 FCST VA CLD +18H: SFC/FL080 N012600,E1273800 N013100,E1273400 N020700,E1275500 N020000,E1281400 N014000,E1281900 RMK: VA NOT IDENTIFIABLE ON CURRENT SATELLITE IMAGERY DUE TO MET CLOUD AND DARKNESS. HOWEVER, DISCRETE EMISSIONS ARE EXPECTED TO BE ONGOING. HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY, GROUND REPORTS AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20260915/2200Z= ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 16:00:00 +0000 2026/158-ETNA-211060-20260915/1600Z VA ADVISORY STATUS: - DTG: 20260915/1600Z VAAC: TOULOUSE VOLCANO: ETNA 211060 PSN: N374400 E0145900 AREA: SICILY VOLCANIC PROVINCE SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/158 INFO SOURCE: VONA INGV, SAT IMG, WEBCAMS AVIATION COLOR CODE: red ERUPTION DETAILS: ERUPTION AT 20260914/0214Z ONGOING ERUPTION OBS VA DTG: 15/1600Z OBS VA CLD: - FCST VA CLD +6H: SFC/FL130 N372300,E0144200 N374500,E0150000 N372100,E0150000 N372300,E0144200 FCST VA CLD +12H: SFC/FL130 N372300,E0143900 N374500,E0150000 N371800,E0145700 N372300,E0143900 FCST VA CLD +18H: SFC/FL130 N372300,E0143900 N374500,E0150000 N371800,E0145700 N372300,E0143900 RMK: ONGOING WEAK ERUPTION WITH A PROBABLE ASH PLUME DRIFTING SOUTHWARDS. DUE TO THE LOW INTENSITY OF THE EVENT, QVA ARE NOT PROVIDED. NXT ADVISORY: NO LATER THAN 20260915/2200Z= ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 14:27:00 +0000 2026/540-SANTA-MARIA-342030-20260915/1427Z VA ADVISORY STATUS: - DTG: 20260915/1427Z VAAC: WASHINGTON VOLCANO: SANTA MARIA 342030 PSN: N144500 W0913300 AREA: GUATEMALA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/540 INFO SOURCE: GOES-19. WEBCAM. NWP MODELS. AVIATION COLOR CODE: - ERUPTION DETAILS: VA SEEN ON WEBCAM OBS VA DTG: 15/1410Z OBS VA CLD: SFC/FL140 N144700,W0914800 N144500,W0913200 N144400,W0913200 N144200,W0914900 N144700,W0914800 FCST VA CLD +6H: SFC/FL140 N144500,W0913200 N144400,W0913100 N143800,W0914700 N144400,W0914800 N144500,W0913200 FCST VA CLD +12H: SFC/FL140 N144600,W0914900 N144600,W0913200 N144500,W0913200 N144000,W0914900 N144600,W0914900 FCST VA CLD +18H: SFC/FL140 N144600,W0914900 N144500,W0913100 N144400,W0913100 N143800,W0914900 N144600,W0914900 RMK: VA EMS SEEN ON WEBCAM. WX CLDS OBSC STLT IMG. NWP MDLS FCST LTLCG IN FL WINDS THRU T+18. ...BUTLER NXT ADVISORY: WILL BE ISSUED BY 20260915/2030Z ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 14:19:00 +0000 2026/788-MAYON-273030-20260915/1419Z VA ADVISORY STATUS: - DTG: 20260915/1419Z VAAC: TOKYO VOLCANO: MAYON 273030 PSN: N131500 E1234100 AREA: PHILIPPINES SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/788 INFO SOURCE: HIMAWARI-9 PHIVOLCS AVIATION COLOR CODE: - ERUPTION DETAILS: ERUPTION AT 20260915/1359Z VA CLD UNKNOWN REPORTED OBS VA DTG: 15/1400Z OBS VA CLD: - FCST VA CLD +6H: - FCST VA CLD +12H: - FCST VA CLD +18H: - RMK: WE WILL ISSUE FURTHER ADVISORY IF VA IS DETECTED IN SATELLITE IMAGERY. NXT ADVISORY: NO FURTHER ADVISORIES= ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 14:10:00 +0000 2026/756-DUKONO-268010-20260915/1410Z VA ADVISORY STATUS: - DTG: 20260915/1410Z VAAC: DARWIN VOLCANO: DUKONO 268010 PSN: N014200 E1275400 AREA: INDONESIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/756 INFO SOURCE: HIMAWARI-9 AVIATION COLOR CODE: - ERUPTION DETAILS: VA TO FL070 OBS AT 15/1000Z EXT NE OBS VA DTG: 15/1350Z OBS VA CLD: SFC/FL070 N013700,E1275400 N014300,E1274800 N023200,E1281400 N022600,E1284700 N015400,E1285200 MOV NE 15KT FCST VA CLD +6H: SFC/FL070 N013800,E1275600 N014000,E1274800 N023600,E1274800 N023700,E1281500 N021900,E1283400 FCST VA CLD +12H: SFC/FL070 N013700,E1275500 N014100,E1274800 N023400,E1280400 N023000,E1283300 N020500,E1284700 FCST VA CLD +18H: SFC/FL070 N013600,E1275300 N014300,E1274800 N022800,E1282000 N021400,E1285100 N014500,E1285100 RMK: VA NOT IDENTIFIABLE ON CURRENT SATELLITE IMAGERY. HOWEVER, EMISSION IS EXPECTED TO BE ONGOING. VA HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20260915/2010Z= ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 12:30:00 +0000 2026/1057-SEMERU-263300-20260915/1230Z VA ADVISORY STATUS: - DTG: 20260915/1230Z VAAC: DARWIN VOLCANO: SEMERU 263300 PSN: S080600 E1125500 AREA: INDONESIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/1057 INFO SOURCE: HIMAWARI-9, CVGHM AVIATION COLOR CODE: - ERUPTION DETAILS: VA TO FL150 REP FM GND AT 15/0414Z OBS VA DTG: 15/1200Z OBS VA CLD: SFC/FL150 S080700,E1125200 S080300,E1125400 S080800,E1132300 S082000,E1132500 S082600,E1131300 MOV SE 20KT FCST VA CLD +6H: SFC/FL150 S080300,E1125400 S080700,E1132400 S081900,E1132500 S082700,E1131400 S080700,E1125200 FCST VA CLD +12H: SFC/FL150 S080700,E1125200 S080300,E1125400 S080500,E1132300 S081800,E1132500 S082700,E1131400 FCST VA CLD +18H: SFC/FL150 S080700,E1125200 S080300,E1125400 S080400,E1132400 S081800,E1132500 S082700,E1131500 RMK: VA NOT IDENTIFIABLE ON RECENT SATELLITE IMAGERY DUE TO MET CLOUD. HOWVERE, DISCRETE EMISSIONS ARE EXPECTED TO BE ONGOING. HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY, GROUND REPORTS AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20260915/1830Z= ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 12:00:00 +0000 2026/237-LEWOTOLOK-264230-20260915/1200Z VA ADVISORY STATUS: - DTG: 20260915/1200Z VAAC: DARWIN VOLCANO: LEWOTOLOK 264230 PSN: S081600 E1233000 AREA: INDONESIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/237 INFO SOURCE: HIMAWARI-9, CVGHM AVIATION COLOR CODE: - ERUPTION DETAILS: VA TO FL060 MOV W REP FM GND AT 15/1059Z OBS VA DTG: 15/1130Z OBS VA CLD: SFC/FL060 S081900,E1233300 S081800,E1224200 S075800,E1224000 S074500,E1225300 S081400,E1233400 MOV NW 20KT FCST VA CLD +6H: SFC/FL060 S081800,E1233200 S081800,E1224100 S075700,E1224000 S074400,E1225200 S081400,E1233300 FCST VA CLD +12H: SFC/FL060 S081900,E1233200 S081700,E1224000 S075300,E1224200 S073900,E1225700 S081400,E1233400 FCST VA CLD +18H: SFC/FL060 S081900,E1233300 S082700,E1224500 S080400,E1224000 S074400,E1225300 S081400,E1233400 RMK: VA NOT IDENTIFIABLE ON CURRENT SATELLITE IMAGERY. HOWEVER, GROUND REPORT INDICATES ONGOING EMISSIONS. HEIGHT AND MOVEMENT BASED ON GROUND REPORTS AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20260915/1800Z= ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 11:51:00 +0000 2026/1079-FUEGO-342090-20260915/1151Z VA ADVISORY STATUS: - DTG: 20260915/1151Z VAAC: WASHINGTON VOLCANO: FUEGO 342090 PSN: N142800 W0905200 AREA: GUATEMALA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/1079 INFO SOURCE: GOES-19. WEBCAM. NWP MODELS. AVIATION COLOR CODE: - ERUPTION DETAILS: VA SEEN ON WEBCAM OBS VA DTG: 15/1120Z OBS VA CLD: SFC/FL160 N143300,W0913400 N142800,W0905200 N142600,W0905200 N142500,W0913400 N143300,W0913400 FCST VA CLD +6H: SFC/FL160 N142900,W0913400 N142900,W0905200 N142700,W0905200 N142200,W0913400 N142900,W0913400 FCST VA CLD +12H: SFC/FL160 N142800,W0905200 N142600,W0905200 N141400,W0913200 N142200,W0913400 N142800,W0905200 FCST VA CLD +18H: SFC/FL160 N142900,W0905200 N142800,W0905100 N140700,W0913000 N141500,W0913300 N142900,W0905200 RMK: VA EMS SEEN ON WEBCAM. WX CLDS OBSC STLT IMG. NWP MDLS FCST BACKING FL WINDS THRU T+18. ...BUTLER NXT ADVISORY: WILL BE ISSUED BY 20260915/1745Z ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 10:00:00 +0000 2026/1048-IBU-268030-20260915/1000Z VA ADVISORY STATUS: - DTG: 20260915/1000Z VAAC: DARWIN VOLCANO: IBU 268030 PSN: N012900 E1273800 AREA: INDONESIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/1048 INFO SOURCE: HIMAWARI-9, CVGHM AVIATION COLOR CODE: - ERUPTION DETAILS: DISCRETE VA EMISSIONS OBS AT 15/0930Z, MOV OBS VA DTG: 15/0930Z OBS VA CLD: SFC/FL080 N012600,E1273800 N012900,E1273500 N020300,E1275500 N020100,E1281100 N014500,E1281500 MOV NE 15KT FCST VA CLD +6H: SFC/FL080 N012600,E1273700 N013100,E1273400 N020000,E1280500 N015100,E1282000 N013400,E1282000 FCST VA CLD +12H: SFC/FL080 N012600,E1273700 N013100,E1273500 N020000,E1280600 N014900,E1282100 N013400,E1282000 FCST VA CLD +18H: SFC/FL080 N012600,E1273800 N013100,E1273500 N020300,E1280200 N015400,E1281700 N013800,E1281800 RMK: VA IDENTIFIABLE ON CURRENT SATELLITE IMAGERY. HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY, GROUND REPORTS AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20260915/1600Z= ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 10:00:00 +0000 2026/157-ETNA-211060-20260915/1000Z VA ADVISORY STATUS: - DTG: 20260915/1000Z VAAC: TOULOUSE VOLCANO: ETNA 211060 PSN: N374400 E0145900 AREA: SICILY VOLCANIC PROVINCE SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/157 INFO SOURCE: INGV VONA, SAT IMAGERY, WEBCAMS AVIATION COLOR CODE: red ERUPTION DETAILS: ERUPTION AT 20260914/0240Z WEAK ERUPTION ONGOING OBS VA DTG: 15/1000Z OBS VA CLD: - FCST VA CLD +6H: SFC/FL130 N374500,E0150300 N372300,E0150900 N372300,E0150000 N374500,E0145700 N374500,E0150300 FCST VA CLD +12H: SFC/FL130 N374500,E0145700 N374500,E0150600 N372100,E0145700 N372700,E0144500 N374500,E0145700 FCST VA CLD +18H: SFC/FL130 N374800,E0145700 N374500,E0150600 N371500,E0150000 N372300,E0144500 N374800,E0145700 RMK: PROBABLE THIN ASH PLUME DRIFTING SOUTHWARD AND QUICKLY DISSIPATING. DUE TO THE LOW INTENSITY OF THE EVENT, QVA ARE NOT PROVIDED. NXT ADVISORY: NO LATER THAN 20260915/1600Z= ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 09:12:00 +0000 2026/951-REVENTADOR-352010-20260915/0912Z VA ADVISORY STATUS: - DTG: 20260915/0912Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S000400 W0773900 AREA: ECUADOR SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/951 INFO SOURCE: GOES-19. NWP MODELS. AVIATION COLOR CODE: - ERUPTION DETAILS: NO VA EMS OBSD OBS VA DTG: 15/0840Z OBS VA CLD: - FCST VA CLD +6H: - FCST VA CLD +12H: - FCST VA CLD +18H: - RMK: VA EMS NOT VSBL IN STLT IMG. NO RCNT RPTS OF VA EMS RCVD. ...BERTALAN NXT ADVISORY: NO FURTHER ADVISORIES ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 08:43:00 +0000 2026/539-SANTA-MARIA-342030-20260915/0843Z VA ADVISORY STATUS: - DTG: 20260915/0843Z VAAC: WASHINGTON VOLCANO: SANTA MARIA 342030 PSN: N144500 W0913300 AREA: GUATEMALA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/539 INFO SOURCE: GOES-19. WEBCAM. NWP MODELS. AVIATION COLOR CODE: - ERUPTION DETAILS: VA EMS OBSD IN WEBCAM OBS VA DTG: 15/0810Z OBS VA CLD: SFC/FL140 N145000,W0914200 N144600,W0913200 N144400,W0913200 N144500,W0914400 N145000,W0914200 FCST VA CLD +6H: SFC/FL140 N145100,W0914700 N144600,W0913300 N144400,W0913300 N144500,W0914800 N145100,W0914700 FCST VA CLD +12H: SFC/FL140 N144600,W0914800 N144600,W0913200 N144400,W0913200 N144000,W0914700 N144600,W0914800 FCST VA CLD +18H: SFC/FL140 N144600,W0913200 N144400,W0913200 N143700,W0914400 N144300,W0914700 N144600,W0913200 RMK: VA EMS VSBL IN WEBCAM BUT NOT OBSD IN STLT IMG DUE TO MET CLDS. WNW MVMT EXP TO SHIFT WSW BY T+12 HRS, AND SW BY T+18 HRS. MVMT AND HGT BASED ON WEBCAM OBS AND NWP MDLS. ...BERTALAN NXT ADVISORY: WILL BE ISSUED BY 20260915/1445Z ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 08:10:00 +0000 2026/755-DUKONO-268010-20260915/0810Z VA ADVISORY STATUS: - DTG: 20260915/0810Z VAAC: DARWIN VOLCANO: DUKONO 268010 PSN: N014200 E1275400 AREA: INDONESIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/755 INFO SOURCE: HIMAWARI-9 AVIATION COLOR CODE: - ERUPTION DETAILS: VA TO FL070 OBS AT 15/0750Z EXT NE OBS VA DTG: 15/0750Z OBS VA CLD: SFC/FL070 N013400,E1275500 N013900,E1274600 N023200,E1280300 N023000,E1283000 N021500,E1285400 N015400,E1283900 FCST VA CLD +6H: SFC/FL070 N013500,E1275400 N014000,E1274500 N023200,E1281400 N022200,E1285200 N015500,E1285600 FCST VA CLD +12H: SFC/FL070 N013500,E1275500 N013800,E1274600 N023900,E1275000 N023700,E1282300 N021700,E1283700 FCST VA CLD +18H: SFC/FL070 N013500,E1275400 N013900,E1274600 N023200,E1280400 N023100,E1283100 N021600,E1284900 RMK: VA IDENTIFIABLE ON CURRENT SATELLITE IMAGERY EXT N AND NE. EMISSIONS EXPECTED TO BE ONGOING. VA HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20260915/1410Z= ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 06:30:00 +0000 2026/1056-SEMERU-263300-20260915/0630Z VA ADVISORY STATUS: - DTG: 20260915/0630Z VAAC: DARWIN VOLCANO: SEMERU 263300 PSN: S080600 E1125500 AREA: INDONESIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/1056 INFO SOURCE: HIMAWARI-9, CVGHM AVIATION COLOR CODE: - ERUPTION DETAILS: VA TO FL150, ERUPTION REPORTED 15/0414Z OBS VA DTG: 15/0610Z OBS VA CLD: SFC/FL150 S080700,E1125100 S080200,E1125400 S081100,E1132500 S082400,E1132700 S083100,E1131500 MOV SE 20KT FCST VA CLD +6H: SFC/FL150 S080700,E1125100 S080100,E1125400 S080800,E1132300 S082000,E1132500 S082600,E1131300 FCST VA CLD +12H: SFC/FL150 S080300,E1125400 S080800,E1132800 S082000,E1132800 S082800,E1132100 S080700,E1125100 FCST VA CLD +18H: SFC/FL150 S080700,E1125100 S080200,E1125400 S081000,E1132600 S082000,E1132800 S082800,E1132000 RMK: VA IDENTIFIABLE ON EARLIER SATELLITE IMAGERY MOV SE, NOW OBSCURED BY MET CLOUD. RECENT GROUND REPORTS INDICATE ONGOING DISCRETE EMISSIONS. HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY, GROUND REPORTS AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20260915/1230Z= ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 06:00:00 +0000 2026/236-LEWOTOLOK-264230-20260915/0600Z VA ADVISORY STATUS: - DTG: 20260915/0600Z VAAC: DARWIN VOLCANO: LEWOTOLOK 264230 PSN: S081600 E1233000 AREA: INDONESIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/236 INFO SOURCE: HIMAWARI-9, CVGHM AVIATION COLOR CODE: - ERUPTION DETAILS: GROUND REPORT OF VA ERUPTION AT 14/0539Z OBS VA DTG: 15/0540Z OBS VA CLD: SFC/FL060 S082500,E1233100 S080400,E1224200 S072800,E1231400 S081800,E1233900 MOV NW 10KT FCST VA CLD +6H: SFC/FL060 S082500,E1233300 S081200,E1223600 S073000,E1225800 S081500,E1234100 FCST VA CLD +12H: SFC/FL060 S081500,E1233900 S082600,E1233500 S082300,E1223600 S074100,E1225000 FCST VA CLD +18H: SFC/FL060 S082300,E1233200 S082700,E1223900 S075300,E1224200 S073500,E1230300 S081300,E1233800 RMK: GROUND REPORT OF ERUPTION WITH VA TO 200M ABOVE SUMMIT MOVING W. VA NOT DETECTED ON CURRENT SATELLITE IMAGERY DUE TO MET CLOUD. ONGOING INTERMITTENT VA ERUPTIONS EXPECTED. FORECAST USING MODEL CONSENSUS DATA. NXT ADVISORY: NO LATER THAN 20260915/1200Z= ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 05:56:00 +0000 2026/1078-FUEGO-342090-20260915/0556Z VA ADVISORY STATUS: - DTG: 20260915/0556Z VAAC: WASHINGTON VOLCANO: FUEGO 342090 PSN: N142800 W0905200 AREA: GUATEMALA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/1078 INFO SOURCE: GOES-19. NWP MODELS. AVIATION COLOR CODE: - ERUPTION DETAILS: PSBL VA EMS OBS VA DTG: 15/0530Z OBS VA CLD: SFC/FL160 N143200,W0910300 N142800,W0905200 N142700,W0905300 N142800,W0910400 N143200,W0910300 FCST VA CLD +6H: SFC/FL160 N143100,W0910700 N142800,W0905200 N142700,W0905200 N142600,W0910700 N143100,W0910700 FCST VA CLD +12H: SFC/FL160 N142900,W0910700 N142800,W0905200 N142700,W0905200 N142300,W0910500 N142900,W0910700 FCST VA CLD +18H: - RMK: VA EMS NOT OBSD IN STLT IMG PSBLY DUE TO MET CLDS. VA EMS MAY BE OBSCD. WNW MVMT EXP TO SHIFT MORE W BY T+6 HRS, AND WSW BY T+12 HRS. MVMT AND HGT BASED ON NWP MDLS. ...BERTALAN NXT ADVISORY: WILL BE ISSUED BY 20260915/1200Z ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 04:00:00 +0000 2026/1047-IBU-268030-20260915/0400Z VA ADVISORY STATUS: - DTG: 20260915/0400Z VAAC: DARWIN VOLCANO: IBU 268030 PSN: N012900 E1273800 AREA: INDONESIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/1047 INFO SOURCE: HIMAWARI-9, CVGHM AVIATION COLOR CODE: - ERUPTION DETAILS: VA EMISSION REPORTED 14/1546Z OBS VA DTG: 15/0340Z OBS VA CLD: SFC/FL080 N012600,E1273700 N013000,E1273400 N015800,E1274700 N015900,E1280200 N015100,E1281400 N013400,E1281500 FCST VA CLD +6H: SFC/FL080 N012700,E1273700 N013100,E1273300 N020300,E1275900 N015900,E1282100 N013800,E1282000 FCST VA CLD +12H: SFC/FL080 N012600,E1273700 N013200,E1273300 N020000,E1280900 N014900,E1282600 N013000,E1282100 FCST VA CLD +18H: SFC/FL080 N012600,E1273600 N013100,E1273300 N015800,E1280900 N014800,E1282700 N013000,E1282100 RMK: VA NOT IDENTIFIABLE ON CURRENT SATELLITE IMAGERY DUE TO MET CLOUD. ONGOING INTERMITTENT VA ERUPTIONS EXPECTED. VA HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY, GROUND REPORTS AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20260915/1000Z= ]]> https://sierra.dev.watchers.news Tue, 15 Sep 2026 03:09:00 +0000 2026/950-REVENTADOR-352010-20260915/0309Z VA ADVISORY STATUS: - DTG: 20260915/0309Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S000400 W0773900 AREA: ECUADOR SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/950 INFO SOURCE: GOES-19. NWP MODELS. AVIATION COLOR CODE: - ERUPTION DETAILS: PSBL VA EMS OBS VA DTG: 15/0240Z OBS VA CLD: SFC/FL140 N00000,W0774700 S000400,W0773900 S000500,W0773900 S000400,W0774900 N00000,W0774700 FCST VA CLD +6H: SFC/FL140 N000000,W0775000 S000400,W0773900 S000500,W0773900 S000400,W0775200 N000000,W0775000 FCST VA CLD +12H: - FCST VA CLD +18H: - RMK: VA EMS NOT OBSD IN STLT IMG PSBLY DUE TO MET CLDS. VA EMS MAY BE OBSCD. LTLCG IN FCST THRU T+6 HRS. MVMT AND HGT BASED ON NWP MDLS. ...BERTALAN NXT ADVISORY: WILL BE ISSUED BY 20260915/0915Z ]]> https://sierra.dev.watchers.news Mon, 14 Sep 2026 14:40:00 +0000 2026/519-PURACE-351060-20260914/1440Z VA ADVISORY STATUS: - DTG: 20260914/1440Z VAAC: WASHINGTON VOLCANO: PURACE 351060 PSN: N021900 W0762400 AREA: COLOMBIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/519 INFO SOURCE: GOES-19. NWP MODELS. AVIATION COLOR CODE: - ERUPTION DETAILS: NO VA OBS OBS VA DTG: 14/1420Z OBS VA CLD: - FCST VA CLD +6H: - FCST VA CLD +12H: - FCST VA CLD +18H: - RMK: VA NOT OBS ON STLT IMG UNDER PRTLY CLDY SKIES. NO RCNT RPRTS OF VA RCVD. ...EVANS NXT ADVISORY: NO FURTHER ADVISORIES ]]> https://sierra.dev.watchers.news Mon, 14 Sep 2026 08:41:00 +0000 2026/518-PURACE-351060-20260914/0841Z VA ADVISORY STATUS: - DTG: 20260914/0841Z VAAC: WASHINGTON VOLCANO: PURACE 351060 PSN: N021900 W0762400 AREA: COLOMBIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/518 INFO SOURCE: GOES-19. NWP MODELS. AVIATION COLOR CODE: - ERUPTION DETAILS: VA EMS PSBL OBS VA DTG: 14/0810Z OBS VA CLD: SFC/FL165 N022600,W0763400 N022000,W0762300 N021800,W0762400 N022300,W0763500 N022600,W0763400 FCST VA CLD +6H: SFC/FL165 N023200,W0764100 N021900,W0762300 N021700,W0762500 N022700,W0764400 N023200,W0764100 FCST VA CLD +12H: - FCST VA CLD +18H: - RMK: VA EMS NOT OBS IN STLT IMG DUE TO HVY MET CLD CVR. VA EMS PSBLY CONTNG BASED ON PREV ACTIVITY. NWP MDL GUIDANCE FCSTS GEN NW MOVMT THRU T+6. ...MONAGHAN NXT ADVISORY: WILL BE ISSUED BY 20260914/1445Z ]]> https://sierra.dev.watchers.news Mon, 14 Sep 2026 02:50:00 +0000 2026/231-LEWOTOLOK-264230-20260914/0250Z VA ADVISORY STATUS: - DTG: 20260914/0250Z VAAC: DARWIN VOLCANO: LEWOTOLOK 264230 PSN: S081600 E1233000 AREA: INDONESIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/231 INFO SOURCE: HIMAWARI-9, CVGHM AVIATION COLOR CODE: - ERUPTION DETAILS: VA TO FL060 REPORTED FROM GROUND 14/0114Z OBS VA DTG: 14/0230Z OBS VA CLD: - FCST VA CLD +6H: - FCST VA CLD +12H: - FCST VA CLD +18H: - RMK: GROUND REPORT OF ERUPTION AT 14/0114Z WITH VA TO 6000FT MOV W. VA IS NOT IDENTIFIABLE ON RECENT SATELLITE IMAGERY IN CLEAR CONDITIONS. VA FROM EARLIER ERUPTION IS EXPECTED TO HAVE DISSIPATED. WINDS FROM MODEL DATA. ADVISORY FINALISED. NXT ADVISORY: NO FURTHER ADVISORIES= ]]> https://sierra.dev.watchers.news Sun, 13 Sep 2026 20:50:00 +0000 2026/230-LEWOTOLOK-264230-20260913/2050Z VA ADVISORY STATUS: - DTG: 20260913/2050Z VAAC: DARWIN VOLCANO: LEWOTOLOK 264230 PSN: S081600 E1233000 AREA: INDONESIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/230 INFO SOURCE: HIMAWARI-9, CVGHM AVIATION COLOR CODE: - ERUPTION DETAILS: VA TO FL060 REPORTED AT 13/2030Z OBS VA DTG: 13/2030Z OBS VA CLD: SFC/FL060 S081600,E1233200 S081800,E1233200 S081800,E1231700 S080700,E1231900 MOV NW 15KT FCST VA CLD +6H: SFC/FL060 S081500,E1233200 S081800,E1233200 S082000,E1224600 S080100,E1224900 FCST VA CLD +12H: SFC/FL060 S081600,E1233300 S081900,E1233100 S080300,E1225000 S074600,E1225600 S074300,E1231500 FCST VA CLD +18H: SFC/FL060 S081500,E1233300 S081800,E1233100 S080800,E1225000 S075500,E1224900 S075100,E1230100 RMK: VA NOT IDENTIFIABLE ON CURRENT SATELLITE IMAGE. VA HEIGHT AND MOVEMENT BASED ON MODEL GUIDANCE AND GROUND REPORTS. NXT ADVISORY: NO LATER THAN 20260914/0250Z= ]]> https://sierra.dev.watchers.news Sun, 13 Sep 2026 18:00:00 +0000 2026/229-LEWOTOLOK-264230-20260913/1800Z VA ADVISORY STATUS: - DTG: 20260913/1800Z VAAC: DARWIN VOLCANO: LEWOTOLOK 264230 PSN: S081600 E1233000 AREA: INDONESIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/229 INFO SOURCE: HIMAWARI-9, CVGHM AVIATION COLOR CODE: - ERUPTION DETAILS: VA TO FL070 OBS AT 13/0600Z EXTD NW OBS VA DTG: 13/1740Z OBS VA CLD: - FCST VA CLD +6H: - FCST VA CLD +12H: - FCST VA CLD +18H: - RMK: VA NOT IDENTIFIABLE ON LATEST SATELLITE IMAGERY IN CLEAR SKIES. NO EVIDENCE OF NEW OR ONGOING ERUPTION. ADVISORY TERMINATED. NXT ADVISORY: NO FURTHER ADVISORIES= ]]> https://sierra.dev.watchers.news Sun, 13 Sep 2026 13:50:00 +0000 2026/31-MANAM-251020-20260913/1350Z VA ADVISORY STATUS: - DTG: 20260913/1350Z VAAC: DARWIN VOLCANO: MANAM 251020 PSN: S040500 E1450200 AREA: PAPUA NEW GUINEA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/31 INFO SOURCE: HIMAWARI-9 AVIATION COLOR CODE: - ERUPTION DETAILS: VA TO FL070 OBS AT 13/0730Z MOV NW OBS VA DTG: 13/1330Z OBS VA CLD: - FCST VA CLD +6H: - FCST VA CLD +12H: - FCST VA CLD +18H: - RMK: VA NOT IDENTIFIABLE ON LATEST SATELLITE IMAGERY DUE TO MET CLOUD. PREVIOUS EMISSION EXPECTED TO HAVE DISSIPATED. NO EVIDENCE OF NEW OR ONGOING ERUPTION. ADVISORY TERMINATED. NXT ADVISORY: NO FURTHER ADVISORIES= ]]> https://sierra.dev.watchers.news Sun, 13 Sep 2026 12:20:00 +0000 2026/228-LEWOTOLOK-264230-20260913/1220Z VA ADVISORY STATUS: - DTG: 20260913/1220Z VAAC: DARWIN VOLCANO: LEWOTOLOK 264230 PSN: S081600 E1233000 AREA: INDONESIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/228 INFO SOURCE: HIMAWARI-9, CVGHM AVIATION COLOR CODE: - ERUPTION DETAILS: VA TO FL070 OBS AT 13/0600Z EXTD NW OBS VA DTG: 13/1200Z OBS VA CLD: SFC/FL070 S081600,E1233400 S082000,E1233200 S075600,E1221400 S072700,E1222100 S072500,E1225300 MOV NW 20KT FCST VA CLD +6H: SFC/FL070 S081500,E1233400 S082100,E1233100 S080200,E1221200 S073600,E1221500 S072800,E1224300 FCST VA CLD +12H: SFC/FL070 S081300,E1233400 S082000,E1233400 S082900,E1221500 S080400,E1220700 S074700,E1222600 FCST VA CLD +18H: SFC/FL070 S081400,E1233400 S082000,E1233300 S082400,E1222400 S075600,E1221700 S074500,E1230500 RMK: VA NOT IDENTIFIABLE ON LATEST SATELLITE IMAGERY DUE TO MET CLOUD. HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY, GROUND REPORTS AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20260913/1820Z= ]]> https://sierra.dev.watchers.news Sun, 13 Sep 2026 07:52:00 +0000 2026/30-MANAM-251020-20260913/0752Z VA ADVISORY STATUS: - DTG: 20260913/0752Z VAAC: DARWIN VOLCANO: MANAM 251020 PSN: S040500 E1450200 AREA: PAPUA NEW GUINEA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/30 INFO SOURCE: HIMAWARI-9 AVIATION COLOR CODE: - ERUPTION DETAILS: VA TO FL070 OBS AT 13/0730Z MOV NW OBS VA DTG: 13/0730Z OBS VA CLD: SFC/FL080 S040500,E1450100 S035800,E1450100 S035400,E1450800 S035700,E1451500 S040600,E1450300 MOV NW 10KT FCST VA CLD +6H: SFC/FL080 S040700,E1450000 S040500,E1445800 S034400,E1445800 S033700,E1451100 S034200,E1452500 S035500,E1452900 FCST VA CLD +12H: - FCST VA CLD +18H: - RMK: VA EMISSION OBS ON LATEST SATELLITE IMAGERY. EMISSION EXPECTED TO DISSIPATE IN 6 HOURS. FORECAST BASED ON SATELLITE IMAGERY AND MODEL GUIDANCE NXT ADVISORY: NO LATER THAN 20260913/1352Z= ]]> https://sierra.dev.watchers.news Sun, 13 Sep 2026 06:20:00 +0000 2026/227-LEWOTOLOK-264230-20260913/0620Z VA ADVISORY STATUS: - DTG: 20260913/0620Z VAAC: DARWIN VOLCANO: LEWOTOLOK 264230 PSN: S081600 E1233000 AREA: INDONESIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/227 INFO SOURCE: HIMAWARI-9, CVGHM AVIATION COLOR CODE: - ERUPTION DETAILS: VA TO FL070 OBS AT 13/0600Z EXTD NW OBS VA DTG: 13/0600Z OBS VA CLD: SFC/FL070 S081600,E1233400 S082000,E1233100 S075200,E1222800 S073000,E1222900 S072800,E1225700 MOV NW 15KT FCST VA CLD +6H: SFC/FL070 S081600,E1233400 S082000,E1233200 S075600,E1221400 S073100,E1221600 S072800,E1224400 FCST VA CLD +12H: SFC/FL070 S081500,E1233400 S082100,E1233100 S080200,E1221200 S074500,E1221100 S073500,E1223100 FCST VA CLD +18H: SFC/FL070 S081300,E1233400 S082000,E1233400 S083100,E1221600 S081300,E1220400 S075600,E1222300 RMK: VA IDENTIFIABLE ON LATEST SATELLITE IMAGERY. HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY, GROUND REPORTS AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20260913/1220Z= ]]> https://sierra.dev.watchers.news Sun, 13 Sep 2026 00:20:00 +0000 2026/226-LEWOTOLOK-264230-20260913/0020Z VA ADVISORY STATUS: - DTG: 20260913/0020Z VAAC: DARWIN VOLCANO: LEWOTOLOK 264230 PSN: S081600 E1233000 AREA: INDONESIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/226 INFO SOURCE: HIMAWARI-9, CVGHM AVIATION COLOR CODE: - ERUPTION DETAILS: VA TO FL070 OBS AT 13/0000Z EXTD WNW OBS VA DTG: 13/0000Z OBS VA CLD: SFC/FL070 S081500,E1233300 S082000,E1233200 S081700,E1223800 S080400,E1223400 S075600,E1224800 MOV W 15KT FCST VA CLD +6H: SFC/FL070 S081600,E1233400 S082000,E1233100 S075900,E1222800 S073500,E1222800 S073000,E1225800 FCST VA CLD +12H: SFC/FL070 S081600,E1233400 S082000,E1233200 S080000,E1221800 S073800,E1222100 S073100,E1224400 FCST VA CLD +18H: SFC/FL070 S081500,E1233400 S082100,E1233100 S080200,E1221200 S074500,E1221100 S073500,E1223100 RMK: VA IDENTIFIABLE ON LATEST SATELLITE IMAGERY. HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY, GROUND REPORTS AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20260913/0620Z= ]]> https://sierra.dev.watchers.news Sat, 12 Sep 2026 18:20:00 +0000 2026/225-LEWOTOLOK-264230-20260912/1820Z VA ADVISORY STATUS: - DTG: 20260912/1820Z VAAC: DARWIN VOLCANO: LEWOTOLOK 264230 PSN: S081600 E1233000 AREA: INDONESIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/225 INFO SOURCE: HIMAWARI-9 CVGHM AVIATION COLOR CODE: - ERUPTION DETAILS: VA TO FL070 OBS AT 12/1750Z, MOV NW OBS VA DTG: 12/1750Z OBS VA CLD: SFC/FL070 S081800,E1233100 S081500,E1225300 S080300,E1224800 S075500,E1225900 S081400,E1233200 MOV NW 20KT FCST VA CLD +6H: SFC/FL070 S081500,E1233200 S081800,E1233200 S082300,E1231600 S082000,E1225100 S080800,E1224400 S075900,E1225500 FCST VA CLD +12H: SFC/FL070 S081800,E1233100 S081600,E1225300 S080400,E1224800 S075500,E1230100 S081500,E1233200 FCST VA CLD +18H: SFC/FL070 S081800,E1233100 S081100,E1225500 S075900,E1225400 S075300,E1230500 S081500,E1233300 RMK: VA IDENTIFIABLE ON RECENT SATELLITE IMAGERY. HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY, GROUND REPORTS AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20260913/0020Z= ]]> https://sierra.dev.watchers.news Sat, 12 Sep 2026 12:20:00 +0000 2026/224-LEWOTOLOK-264230-20260912/1220Z VA ADVISORY STATUS: - DTG: 20260912/1220Z VAAC: DARWIN VOLCANO: LEWOTOLOK 264230 PSN: S081600 E1233000 AREA: INDONESIA SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/224 INFO SOURCE: HIMAWARI-9 CVGHM AVIATION COLOR CODE: - ERUPTION DETAILS: VA TO FL070 OBS AT 12/1000Z, MOV NW OBS VA DTG: 12/1200Z OBS VA CLD: SFC/FL070 S081800,E1233100 S081700,E1225300 S080400,E1225100 S075700,E1225900 S081500,E1233300 MOV NW 20KT FCST VA CLD +6H: SFC/FL070 S081800,E1233100 S081500,E1225300 S080300,E1224800 S075400,E1230000 S081500,E1233300 FCST VA CLD +12H: SFC/FL070 S081500,E1233200 S081800,E1233200 S082200,E1231600 S082000,E1225100 S080800,E1224400 S075900,E1225500 FCST VA CLD +18H: SFC/FL070 S081900,E1233100 S081700,E1225300 S080500,E1224800 S075500,E1225900 S081500,E1233300 RMK: VA IDENTIFIABLE ON RECENT SATELLITE IMAGERY. HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY, GROUND REPORTS AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20260912/1820Z= ]]> https://sierra.dev.watchers.news Fri, 11 Sep 2026 04:00:00 +0000 2026/146-ETNA-211060-20260911/0400Z VA ADVISORY STATUS: - DTG: 20260911/0400Z VAAC: TOULOUSE VOLCANO: ETNA 211060 PSN: N374400 E0145900 AREA: SICILY VOLCANIC PROVINCE SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/146 INFO SOURCE: VONA, WEBCAMS, SAT IMAGERY AVIATION COLOR CODE: red ERUPTION DETAILS: ERUPTION AT 20260908/2000Z WEAK ONGOING ERUPTION OBS VA DTG: 11/0400Z OBS VA CLD: SFC/FL140 N374800,E0150000 N380300,E0152100 N374500,E0152700 N373800,E0150000 N374800,E0150000 MOV E 10KT FCST VA CLD +6H: SFC/FL140 N374800,E0150000 N374800,E0153300 N373000,E0153000 N374200,E0150000 N374800,E0150000 FCST VA CLD +12H: SFC/FL140 N374800,E0150000 N373800,E0152700 N373000,E0152100 N374200,E0145700 N374800,E0150000 FCST VA CLD +18H: SFC/FL140 N374800,E0150000 N374500,E0153000 N373300,E0152700 N374200,E0150000 N374800,E0150000 RMK: WEAK ASH EMISSION ONGOING, ASH PLUME DRIFTING GENERALY EAST AND DISSIPITATING. DUE TO THE LOW INTENSITY OF THE EVENT QVA ARE NOT PROVIDED. NXT ADVISORY: NO LATER THAN 20260911/1000Z= ]]> https://sierra.dev.watchers.news Fri, 11 Sep 2026 00:56:00 +0000 2026/018-SHISHALDIN-311360-20260911/0056Z VA ADVISORY STATUS: - DTG: 20260911/0056Z VAAC: ANCHORAGE VOLCANO: SHISHALDIN 311360 PSN: N544500 W1630580 AREA: ALEUTIAN ISLANDS SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/018 INFO SOURCE: PILOT REPORT. AVIATION COLOR CODE: - ERUPTION DETAILS: NO ERUPTION. VA NOT IDENTIFIABLE FM SATELLITE DATA OBS VA DTG: 11/0056Z OBS VA CLD: - FCST VA CLD +6H: - FCST VA CLD +12H: - FCST VA CLD +18H: - RMK: VA NOT IDENTIFIABLE FM SATELLITE DATA. A NEW ADVISORY WILL BE ISSUED IF VA IS DETECTED IN SATELLITE IMAGERY. ...SC NXT ADVISORY: NO FURTHER ADVISORIES ]]> https://sierra.dev.watchers.news Thu, 10 Sep 2026 22:00:00 +0000 2026/145-ETNA-211060-20260910/2200Z VA ADVISORY STATUS: - DTG: 20260910/2200Z VAAC: TOULOUSE VOLCANO: ETNA 211060 PSN: N374400 E0145900 AREA: SICILY VOLCANIC PROVINCE SUMMIT ELEV: 3357 M (11013 FT) ADVISORY NR: 2026/145 INFO SOURCE: VONA, WEBCAMS, SAT IMAGERY AVIATION COLOR CODE: red ERUPTION DETAILS: ERUPTION AT 20260908/2000Z WEAK ONGOING ERUPTION OBS VA DTG: 10/2200Z OBS VA CLD: SFC/FL140 N374500,E0145700 N374800,E0150300 N372700,E0152100 N372100,E0150900 N374500,E0145700 MOV SE 10KT FCST VA CLD +6H: SFC/FL140 N374500,E0150000 N374500,E0151500 N372100,E0153000 N371200,E0151500 N374500,E0150000 FCST VA CLD +12H: SFC/FL140 N374800,E0150000 N374500,E0153300 N373000,E0153000 N374200,E0150000 N374800,E0150000 FCST VA CLD +18H: SFC/FL140 N374800,E0150000 N374500,E0153300 N373300,E0153000 N374200,E0150000 N374800,E0150000 RMK: WEAK ASH EMISSION, ASH CLOUD DRIFTING SE AND DISSIPATING. DUE TO THE LOW INTENSITY OF THE EVENT QVA ARE NOT PROVIDED. NXT ADVISORY: NO LATER THAN 20260911/0400Z= ]]> https://sierra.dev.watchers.news Wed, 09 Sep 2026 16:00:00 +0000 2026/140-ETNA-211060-20260909/1600Z VA ADVISORY STATUS: - DTG: 20260909/1600Z VAAC: TOULOUSE VOLCANO: ETNA 211060 PSN: N374400 E0145900 AREA: SICILY VOLCANIC PROVINCE SUMMIT ELEV: 0 M (0 FT) ADVISORY NR: 2026/140 INFO SOURCE: INGV VONA, WEBCAMS, SAT IMAGERY AVIATION COLOR CODE: red ERUPTION DETAILS: ERUPTION AT 20260908/2000Z FEEBLE ONGOING ERUPTION OBS VA DTG: 09/1600Z OBS VA CLD: SFC/FL160 N374800,E0150000 N373300,E0171100 N364800,E0170300 N370300,E0152100 N372300,E0150600 N374800,E0150000 MOV E 15KT FCST VA CLD +6H: SFC/FL120 N374500,E0145400 N374500,E0150900 N363000,E0152700 N363000,E0144800 N374500,E0145400 N374500,E0150900 N371500,E0162100 N371200,E0173000 N363000,E0173000 N363000,E0152700 N374500,E0150900 FCST VA CLD +12H: SFC/FL120 N374800,E0150000 N365300,E0160900 N360300,E0160000 N360600,E0143600 N374800,E0150000 N374500,E0150000 N365700,E0180300 N363300,E0180000 N365300,E0161100 N374500,E0150000 FCST VA CLD +18H: - RMK: WEAK ASH EMISSION AND THIN ASH CLOUD DRIFTING ESE. DUE TO THE LOW INTENSITY OF THE EVENT, QVA ARE NOT PROVIDED. NXT ADVISORY: NO LATER THAN 20260909/2200Z= ]]> https://sierra.dev.watchers.news Tue, 08 Sep 2026 20:00:00 +0000 2026/508-SABANCAYA-354006-20260908/2000Z VA ADVISORY STATUS: - DTG: 20260908/2000Z VAAC: BUENOS AIRES VOLCANO: SABANCAYA 354006 PSN: S154700 W0715000 AREA: PERU SUMMIT ELEV: 5967 M (19576 FT) ADVISORY NR: 2026/508 INFO SOURCE: GOES-E. WEBCAM. AVIATION COLOR CODE: - ERUPTION DETAILS: NO VA EMISSION OBS VA DTG: 08/1930Z OBS VA CLD: - FCST VA CLD +6H: - FCST VA CLD +12H: - FCST VA CLD +18H: - RMK: VA NOT SEEN IN STLT IMAGERY DUE TO WX CLD CVR. WEBCAM SHOWS WEAK STEAM EMISSIONS ...SMN NXT ADVISORY: NO FURTHER ADVISORIES= ]]>