Semisopochnoi Volcano Volcanic Ash Advisory: LAST ERUPTION WAS 18Z. VA IS NO VISIBLE IN SATELITE BUT CAMERA AND RECORDERS SHOW ANOTHER ERUPTION HAS to 12000 ft (3700 m)

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 15 kts in NNE direction.
The full report is as follows:

FVAK22 at 20:31 UTC, 07/09/21 from PAWU
VAAAK2
VA ADVISORY

DTG: 20210907/2011Z

VAAC: ANCHORAGE

VOLCANO: SEMISOPOCHNOI 311060

PSN: N5156 E17935

AREA: ALEUTIAN ISLANDS

SUMMIT ELEV: 4006 FT [1221 M]

ADVISORY NR: 2021/112

INFO SOURCE: HIMAWARI/GOES/AVO

AVIATION COLOR CODE: ORANGE

ERUPTION DETAILS: LAST ERUPTION WAS 18Z. VA IS NO VISIBLE IN
SATELITE BUT CAMERA AND RECORDERS SHOW ANOTHER ERUPTION HAS
OCCURED.

OBS VA DTG: 07/2011Z

OBS VA CLD: SFC/FL120 N5231 E17904 - N5234 W17831 - N5149 W17901
- N5140 E17857 - N5231 E17904 MOV NNE 15KT.

FCST VA CLD +6HR: 08/0211Z SFC/FL120 N5328 E17945 - N5247 W17643
- N5201 W17725 - N5152 E17949 - N5246 E17822 - N5328 E17945.

FCST VA CLD +12HR: 08/0811Z SFC/FL120 N5251 E17802 - N5415
E17958 - N5447 W17457 - N5249 W17707 - N5144 E17938 - N5251
E17802.

FCST VA CLD +18HR: 08/1411Z SFC/FL120 N5637 W17358 - N5536
W17216 - N5206 W17913 - N5159 E17850 - N5320 E17811 - N5523
W17855 - N5637 W17358 - N5637 W17358.

RMK: T+0 CONFIDENCE LOW.
VA IS BEING FORECASTED USING THE PUFF MODEL.

NXT ADVISORY: WILL BE ISSUED BY 20210908/0211Z

RDE SEP 2021 AAWU