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Semisopochnoi Volcano Volcanic Ash Advisory: OCNL ERUPTIONS. to 6000 ft (1800 m)

Sat, 4 Sep 2021, 10:45
10:45 AM | BY: VN
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Anchorage warned about a volcanic ash plume that rose up to estimated 6000 ft (1800 m) altitude or flight level 060 and is moving at 20 kts in SE direction.
The full report is as follows:

FVAK22 at 10:41 UTC, 04/09/21 from PAWU
VAAAK2
VA ADVISORY

DTG: 20210904/1036Z

VAAC: ANCHORAGE

VOLCANO: SEMISOPOCHNOI 311060

PSN: N5156 E17935

AREA: ALEUTIAN ISLANDS

SUMMIT ELEV: 4006 FT [1221 M]

ADVISORY NR: 2021/098

INFO SOURCE: HIMAWARI/GOES 17/WEBICORDER

AVIATION COLOR CODE: ORANGE

ERUPTION DETAILS: OCNL ERUPTIONS.

OBS VA DTG: 04/1036Z

OBS VA CLD: SFC/FL060 N5205 E17939 - N5106 W17748 - N5038 W17855
- N5153 E17925 - N5205 E17939 MOV SE 20KT.

FCST VA CLD +6HR: 04/1636Z SFC/FL060 N5207 E17939 - N5107 W17747
- N5034 W17853 - N5152 E17923 - N5207 E17939 - N5207 E17939.

FCST VA CLD +12HR: 04/2236Z NO VA EXP.

FCST VA CLD +18HR: 05/0436Z NO VA EXP.

RMK: OCNL ERUPTIVE ACTIVITY AT SEMISOPOCHNOI. VA SIGNAL OBS IN SATELLITE
IMAGES AND CONSISTENT WITH WEBICORDER DATA. MOST RECENT ERUPTION YIELDING
VA APPEARS TO HAVE OCCURRED 20210904/1000Z.

NXT ADVISORY: WILL BE ISSUED BY 20210904/1636Z

JAM SEP 2021 AAWU

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