FVXX20 KNES 310117
VA ADVISORY
DTG: 20210531/0117Z

VAAC: WASHINGTON

VOLCANO: SANGAY 352090
PSN: S0200 W07820

AREA: ECUADOR

SUMMIT ELEV: 17159 FT (5230 M)

ADVISORY NR: 2021/527

INFO SOURCE: GOES-16. GUAYAQUIL MWO. NWP MODELS. 

ERUPTION DETAILS: SIG VA EMS APROX 22Z

OBS VA DTG: 31/0030Z

OBS VA CLD: SFC/FL230 S0156 W07910 - S0205 W07910
- S0208 W07925 - S0157 W07926 - S0156 W07910 MOV
W 20KT 

FCST VA CLD +6HR: 31/0630Z SFC/FL230 S0158 W08102
- S0208 W08102 - S0209 W08111 - S0200 W08111 -
S0158 W08102 

FCST VA CLD +12HR: 31/1230Z NO VA EXP

FCST VA CLD +18HR: 31/1830Z NO VA EXP

RMK: DETACHED MDTLY THICK VA AREA ABT 60 NM W OF
SUMMIT MOVG W. VA WAS NOT DETECTED EARLIER TO
RAPID TSTM DVLPMNT NEAR SUMMIT THAT MASKED VA
SIGNATURE. VA LIKELY TO IMPACT SEGU ARPT IN THE
NXT 30 MIN. ...KONON

NXT ADVISORY: WILL BE ISSUED BY 20210531/0715Z