FVXX22 KNES 211937
VA ADVISORY
DTG: 20230421/1937Z

VAAC: WASHINGTON

VOLCANO: SANGAY 352090
PSN: S0200 W07820

AREA: ECUADOR

SUMMIT ELEV: 17342 FT (5286 M)

ADVISORY NR: 2023/336

INFO SOURCE: GOES-16. NWP MODELS. 

ERUPTION DETAILS: VA EMS OBS

OBS VA DTG: 21/1910Z

OBS VA CLD: SFC/FL430 S0150 W07932 - S0156 W07828
- S0204 W07828 - S0222 W07930 - S0150 W07932 MOV
W 25KT 

FCST VA CLD +6HR: 22/0100Z SFC/FL430 S0146 W07950
- S0159 W07819 - S0202 W07819 - S0224 W07949 -
S0146 W07950 

FCST VA CLD +12HR: 22/0700Z SFC/FL430 S0154
W07950 - S0159 W07819 - S0202 W07819 - S0229
W07947 - S0154 W07950 

FCST VA CLD +18HR: 22/1300Z SFC/FL430 S0159
W07819 - S0201 W07819 - S0259 W07931 - S0226
W07948 - S0159 W07819 

RMK: LARGE VA EMS OBS IN STLT IMG MOV W AND EXT
AT LEAST 70 NMI FM SUMMIT. OCNL VA EMS MAY CONT.
MVMT EXP TO SHIFT SW BY T+18. FL AND MVMT BASED
ON STLT AND NWP MODELS. ...GATLING

NXT ADVISORY: WILL BE ISSUED BY 20230422/0130Z