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Semisopochnoi Volcano Volcanic Ash Advisory: OCCASIONAL LOW LEVEL ERUPTIONS. to 10000 ft (3000 m)

mar., 16 nov. 2021, 10:45
10:45 AM | AUTEUR : VN
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Anchorage warned about a volcanic ash plume that rose up to estimated 10000 ft (3000 m) altitude or flight level 100 and is moving at 35 kts in N direction.
The full report is as follows:

FVAK22 at 10:37 UTC, 16/11/21 from PAWU
VAAAK2
VA ADVISORY

DTG: 20211116/1025Z

VAAC: ANCHORAGE

VOLCANO: SEMISOPOCHNOI 311060

PSN: N5156 E17935

AREA: ALEUTIAN ISLANDS

SUMMIT ELEV: 4006 FT [1221 M]

ADVISORY NR: 2021/193

INFO SOURCE: HIMAWARI/GOES-17

AVIATION COLOR CODE: ORANGE

ERUPTION DETAILS: OCCASIONAL LOW LEVEL ERUPTIONS.

OBS VA DTG: 16/1025Z

OBS VA CLD: SFC/FL100 N5309 E17955 - N5255 W17832 - N5227 W17837
- N5226 W17939 - N5155 E17946 - N5158 E17917 - N5247 E17924 -
N5309 E17955 MOV N 35KT

FCST VA CLD +6HR: 16/1625Z SFC/FL100 N5348 W17927 - N5157 E17949
- N5158 E17917 - N5343 E17916 - N5348 W17927

FCST VA CLD +12HR: 16/2225Z SFC/FL100 N5348 W17855 - N5156
E17948 - N5157 E17923 - N5347 E17934 - N5348 W17855 - N5348 W17855

FCST VA CLD +18HR: 17/0425Z NO VA EXP

RMK: ONGOING OCCASIONAL LOW LEVEL ERUPTIONS SEEN ON HIMAWARI AND
GOES-17 SATELLITE IMAGERY. TRANSPORT WINDS WILL INCREASE FROM
THE S FROM 20KT TO 35KT. VA IS EXPECTED TO BE OBSCURED BY MET
CLOUDS BY THE NEXT ADVISORY. WE WILL ISSUE FURTHER ADVISORIES IF VA
IS VISIBLE IN SATELLITE IMAGERY...NS

NXT ADVISORY: WILL BE ISSUED BY 20211116/1625Z

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