FVXX20 KNES 261939
VA ADVISORY
DTG: 20210426/1939Z

VAAC: WASHINGTON

VOLCANO: SANGAY 352090
PSN: S0200 W07820

AREA: ECUADOR

SUMMIT ELEV: 17159 FT (5230 M)

ADVISORY NR: 2021/417

INFO SOURCE: GOES-16. NWP MODELS. 

ERUPTION DETAILS: DISCRETE VA EM

OBS VA DTG: 26/1910Z

OBS VA CLD: SFC/FL200 S0159 W07820 - S0201 W07819
- S0214 W07837 - S0207 W07840 - S0159 W07820 MOV
SW 10-15KT 

FCST VA CLD +6HR: 27/0100Z SFC/FL200 S0159 W07820
- S0201 W07819 - S0215 W07837 - S0207 W07841 -
S0159 W07820 

FCST VA CLD +12HR: 27/0700Z NO VA EXP

FCST VA CLD +18HR: 27/1300Z NO VA EXP

RMK: DISCRETE VA PUFFS SEEN IN STLT MOV SW AND
EXTND APRX 20 NM FROM SUMMIT BEFORE OBSC IN MET
CLDS. VA EM EXPECTED TO CONT THRU FCST PERIOD
BASED ON RECENT ACT.  ...VELASCO

NXT ADVISORY: WILL BE ISSUED BY 20210427/0145Z