FVFE01 RJTD 171254
VAAAK1
VA ADVISORY

DTG: 20210817/1250Z

VAAC: ANCHORAGE

VOLCANO: SEMISOPOCHNOI 311060

PSN: N5156 E17935

AREA: ALEUTIAN ISLANDS

SUMMIT ELEV: 4006 FT (1221 M)

ADVISORY NR: 2021/066

INFO SOURCE: HIMAWARI/WEBICORDER

AVIATION COLOR CODE: ORANGE

ERUPTION DETAILS: SERIES OF ERUPTIONS BETWEEN 20210817/1000Z AND 2021
0817/1100Z

OBS VA DTG: 17/1250Z

OBS VA CLD: SFC/FL110 N5226 E17558 - N5123 E17724 - N5120 E17700
- N5222 E17548 - N5226 E17558 MOV SE 10KT.

FCST VA CLD +6HR: 17/1850Z SFC/FL110 N5227 E17602 - N5123 E17727
- N5119 E17701 - N5220 E17547 - N5227 E17602 - N5227 E17602.

FCST VA CLD +12HR: 18/0050Z NO VA EXP.

FCST VA CLD +18HR: 18/0650Z NO VA EXP.

RMK: A SERIES OF BRIEF ERUPTIONS OCCURRED AT SEMISOPOCHNOI PER HIMAWA
RI SATELLITE IMAGERY.
WK VA SIGNAL OBS WHICH IS CONSISTENT WITH WEBICORDER SEISMIC DATA.

NXT ADVISORY: WILL BE ISSUED BY 20210817/1850Z

JAM AUG 2021 AAWU=