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Semisopochnoi Volcano Volcanic Ash Advisory: CONTINUOUS LOW-LVL ERUPTION. to 5000 ft (1500 m)

Tue, 17 May 2022, 16:30
16:30 PM | BY: VN
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Anchorage warned about a volcanic ash plume that rose up to estimated 5000 ft (1500 m) altitude or flight level 050 and is moving at 5 kts in NNW direction.
The full report is as follows:

FVAK21 at 16:24 UTC, 17/05/22 from PAWU
VAAAK1
VA ADVISORY

DTG: 20220517/1617Z

VAAC: ANCHORAGE

VOLCANO: SEMISOPOCHNOI 311060

PSN: N5156 E17935

AREA: ALEUTIAN ISLANDS

SUMMIT ELEV: 4006 FT [1221 M]

ADVISORY NR: 2022/037

INFO SOURCE: WEBCAMERA

AVIATION COLOR CODE: ORANGE

ERUPTION DETAILS: CONTINUOUS LOW-LVL ERUPTION.

OBS VA DTG: 17/1617Z

OBS VA CLD: SFC/FL050 N5305 E17743 - N5201 E17958 - N5148 E17932
- N5250 E17723 - N5305 E17743 MOV NNW 5KT

FCST VA CLD +6HR: 17/2217Z SFC/FL050 N5328 E17834 - N5157 E17955
- N5151 E17932 - N5319 E17741 - N5328 E17834

FCST VA CLD +12HR: 18/0417Z SFC/FL050 N5341 E17918 - N5156
E17951 - N5152 E17931 - N5325 E17818 - N5341 E17918

FCST VA CLD +18HR: 18/1017Z SFC/FL050 N5344 E17946 - N5157
E17951 - N5155 E17928 - N5335 E17846 - N5344 E17946 - N5344 E17946

RMK: LOW-LVL ERUPTION AT SEMISOPOCHNOI PRSTS. THERE IS NO VA SIGNAL OBS IN
SATELLITE IMAGERY DUE TO THE PRESENCE OF THICK METEOROLOGICAL CLDS. HOWEVER
WEBCAMERA IMAGERY CONFIRMS THE PRESENCE OF VA. A STG HI PRES RDG IS CENTERED
IN THE VCY OF PAAK AND TRANSPORT FLOW AT THE VOLCANO SUMMIT IS OUT OF THE SSE
TRENDING TO OUT OF THE S IN COMING HRS. ...JAM

NXT ADVISORY: WILL BE ISSUED BY 20220517/2217Z

Previous news

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Stratovolcano 1221 m / 4,006 ft
United States, Aleutian Islands, 51.93°N / 179.58°E
Current status: restless (2 out of 5) Semisopochnoi volcano eruptions:
2021, 2020, 2019, 2018, 1987
Typical eruption style
unspecified
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