Semisopochnoi Volcano Volcanic Ash Advisory: OCNL ERUPTIONS. to 12000 ft (3700 m)
mer., 29 sept. 2021, 09:45 09:45 AM | AUTEUR : VN
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Anchorage warned about a volcanic ash plume that rose up to estimated 12000 ft (3700 m) altitude or flight level 120 and is moving at 35 kts in E direction.The full report is as follows:
FVAK21 at 09:35 UTC, 29/09/21 from PAWU
VAAAK1
VA ADVISORY
DTG: 20210929/0935Z
VAAC: ANCHORAGE
VOLCANO: SEMISOPOCHNOI 311060
PSN: N5156 E17935
AREA: ALEUTIAN ISLANDS
SUMMIT ELEV: 4006 FT [1221 M]
ADVISORY NR: 2021/148
INFO SOURCE: HIMAWARI/GOES 17/WEBICORDER
AVIATION COLOR CODE: ORANGE
ERUPTION DETAILS: OCNL ERUPTIONS.
OBS VA DTG: 29/0935Z
OBS VA CLD: SFC/FL120 N5306 W17407 - N5214 W17417 - N5149 E17932
- N5209 E17932 - N5306 W17407 MOV E 35KT.
FCST VA CLD +6HR: 29/1535Z SFC/FL120 N5306 W17407 - N5213 W17415
- N5148 E17935 - N5209 E17933 - N5306 W17407 - N5306 W17407.
FCST VA CLD +12HR: 29/2135Z NO VA EXP.
FCST VA CLD +18HR: 30/0335Z NO VA EXP.
RMK: OCNL ERUPTIVE ACTIVITY PRSTS AT SEMISOPOCHNOI. VA SIGNALS IN SATELLITE
IMAGERY HAVE BECM OBSC BY METEOROLOGICAL CLDS. WEBICORDER DATA SUGGESTS MOST
RECENT ERUPTION MAY HAVE OCCURRED AROUND 20210929/0630Z.
NXT ADVISORY: WILL BE ISSUED BY 20210929/1535Z
JAM SEP 2021 AAWU
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Actualités précédentes
mer., 29 sept. 2021, 06:00
Semisopochnoi volcano (Aleutian Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 29 September-5 October 2021 (Continuing Activity)
AVO reported that eruptive activity at Semisopochnoi's North Cerberus crater continued during 29 September-5 October. Seismicity remained elevated with intermittent explosion signals or bursts of activity likely from explosions. A few explosions were also detected in regional infrasound data during 2-5 October. ... Read all
mar., 28 sept. 2021, 22:30
Semisopochnoi Volcano Volcanic Ash Advisory: ERUPTION BEGAN AROUND 2150Z. VA EVIDENT ON SATELLITE IMAGERY. to 12000 ft (3700 m)
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