FVXX20 KNES 181747
VA ADVISORY
DTG: 20210418/1747Z

VAAC: WASHINGTON

VOLCANO: SANGAY 352090
PSN: S0200 W07820

AREA: ECUADOR

SUMMIT ELEV: 17159 FT (5230 M)

ADVISORY NR: 2021/383

INFO SOURCE: GOES-16. NWP MODELS. 

ERUPTION DETAILS: NEW VA EM ARND 1610Z

OBS VA DTG: 18/1730Z

OBS VA CLD: SFC/FL250 S0137 W07856 - S0157 W07819
- S0202 W07819 - S0219 W07856 - S0137 W07856 MOV
W 15KT 

FCST VA CLD +6HR: 18/2330Z SFC/FL250 S0129 W07935
- S0141 W07852 - S0226 W07846 - S0246 W07932 -
S0129 W07935 

FCST VA CLD +12HR: 19/0530Z SFC/FL250 S0210
W07937 - S0249 W07930 - S0310 W08016 - S0224
W08025 - S0210 W07937 

FCST VA CLD +18HR: 19/1130Z NO VA EXP

RMK: NEW VA CLD MOVG W FM SUMMIT AT 15KTS AND
RAPIDLY FANNING OUT W INCR DIST. VA ON THE S
PORTION OF THE PLUME APPEARS THICKER AND WILL
LKLY PERSIST LONGER. NWP MODELS SUPPORT VA BLW
FL250. ...RAMIREZ

NXT ADVISORY: WILL BE ISSUED BY 20210418/2345Z