FVXX21 KNES 310551
VA ADVISORY
DTG: 20211231/0551Z

VAAC: WASHINGTON

VOLCANO: SANGAY 352090
PSN: S0200 W07820

AREA: ECUADOR

SUMMIT ELEV: 17159 FT (5230 M)

ADVISORY NR: 2021/1142

INFO SOURCE: GOES-16. NWP MODELS. VOLCAT. 

ERUPTION DETAILS: VA CLDS OBSD

OBS VA DTG: 31/0520Z

OBS VA CLD: SFC/FL190 S0155 W07821 - S0156 W07816
- S0203 W07822 - S0202 W07825 - S0155 W07821 MOV
NE 5KT 

FCST VA CLD +6HR: 31/1130Z SFC/FL190 S0156 W07804
- S0202 W07804 - S0201 W07820 - S0159 W07821 -
S0156 W07804 

FCST VA CLD +12HR: 31/1730Z NO VA EXP

FCST VA CLD +18HR: 31/2330Z NO VA EXP

RMK: VA CLDS OBSD IN SAT OVER THE SUMMIT AMONG
MET CLDS. MDL DOES MOT AGREE WELL WITH OBS, THUS
CONFIDENCE OF FCST IS LOW.  ...ZENG

NXT ADVISORY: WILL BE ISSUED BY 20211231/1145Z