FVFE01 RJTD 031307
VAAAK1
VA ADVISORY

DTG: 20211003/1254Z

VAAC: ANCHORAGE

VOLCANO: SEMISOPOCHNOI 311060

PSN: N5156 E17935

AREA: ALEUTIAN ISLANDS

SUMMIT ELEV: 4006 FT (1221 M)

ADVISORY NR: 2021/152

INFO SOURCE: HIMAWARI/GOES-17

AVIATION COLOR CODE: ORANGE

ERUPTION DETAILS: LOW LEVEL ERUPTIONS.

OBS VA DTG: 03/1254Z

OBS VA CLD: SFC/FL100 N5305 W17851 - N5159 E17948 - N5200 E17923
- N5310 E17916 - N5305 W17851 MOV N 25KT.

FCST VA CLD +6HR: 03/1854Z SFC/FL100 N5305 W17843 - N5201 E17954
- N5203 E17916 - N5309 E17955 - N5305 W17843.

FCST VA CLD +12HR: 04/0054Z SFC/FL100 N5257 W17759 - N5154
E17949 - N5160 E17924 - N5308 E17954 - N5257 W17759 - N5257
W17759.

FCST VA CLD +18HR: 04/0654Z NO VA EXP.

RMK: HIGH LEVEL MET CLOUDS OVER THE VOLCANO HAVE MOVED OFF TO THE EAS
T
ALLOWING FOR HIMAWARI AND GOES-17 ASH AND DUST RGB IMAGERY TO DETECT
PERIODIC LOW LEVEL ERUPTIONS WITH VA DRIFTING NORTH FROM VOLCANO.

NXT ADVISORY: WILL BE ISSUED BY 20211003/1854Z

NS OCT 2021 AAWU=