Semisopochnoi Volcano Volcanic Ash Advisory: OCNL LOW-LVL ERUPTIVE ACTIVITY. to 8000 ft (2400 m)

Tue, 1 Jun 2021, 12:56
12:56 PM | BY: VN
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Anchorage warned about a volcanic ash plume that rose up to estimated 8000 ft (2400 m) altitude or flight level 080 and is moving at 25 kts in S direction.
The full report is as follows:

FVAK21 at 07:36 UTC, 30/05/21 from PAWU
VAAAK1
VA ADVISORY

DTG: 20210530/0735Z

VAAC: ANCHORAGE

VOLCANO: SEMISOPOCHNOI 311060

PSN: N5156 E17935

AREA: ALEUTIAN ISLANDS

SUMMIT ELEV: 4006 FT [1221 M]

ADVISORY NR: 2021/045

INFO SOURCE: HIMAWARI/GOES 17.

AVIATION COLOR CODE: ORANGE

ERUPTION DETAILS: OCNL LOW-LVL ERUPTIVE ACTIVITY.

OBS VA DTG: 30/0735Z

OBS VA CLD: SFC/FL080 N5157 E17948 - N4951 E17939 - N4958 E17839
- N5156 E17928 - N5157 E17948 MOV S 25KT.

FCST VA CLD +6HR: 30/1335Z SFC/FL080 N5158 E17947 - N4952 E17940
- N4958 E17840 - N5154 E17927 - N5158 E17947.

FCST VA CLD +12HR: 30/1935Z SFC/FL080 N5159 E17947 - N4950
E17945 - N4957 E17841 - N5159 E17927 - N5159 E17947 - N5159
E17947.

FCST VA CLD +18HR: 31/0135Z NO VA EXP.

RMK: NEW ERUPTIVE ACTIVITY APPEARS TO BE ONGOING AT SEMISOPOCHNOI PER SATELLITE
IMAGERY.
CHARACTER OF VA SIGNAL SUGGESTS IT IS LOW-LVL COMMENSURATE WITH OTHER RECENT EMI
SSIONS.

NXT ADVISORY: WILL BE ISSUED BY 20210530/1335Z

JAM MAY 2021 AAWU



Previous news

Mon, 31 May 2021, 09:09
Elevated surface temperatures in the inner Cerberus crater (image: Sentinel 2)
After almost 3 weeks, since the volcano observatory lowered Volcanic Alert Level to Yellow, the Alaska Volcano Observatory (AVO) reported that a low-level eruptive activity renewed at 09:45 local time yesterday. ... Read all
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