FVXX22 KNES 021020
VA ADVISORY
DTG: 20211202/1020Z

VAAC: WASHINGTON

VOLCANO: SANGAY 352090
PSN: S0200 W07820

AREA: ECUADOR

SUMMIT ELEV: 17159 FT (5230 M)

ADVISORY NR: 2021/1045

INFO SOURCE: GOES-16. VONA. NWP MODELS.
GEOPHYSICAL INST. 

ERUPTION DETAILS: MAJOR ERUPTIVE EVENT

OBS VA DTG: 02/0940Z

OBS VA CLD: SFC/FL400 S0149 W07826 - S0157 W07818
- S0214 W07836 - S0207 W07847 - S0149 W07826 MOV
W 35KT SFC/FL500 S0155 W07816 - S0158 W07806 -
S0213 W07822 - S0210 W07831 - S0155 W07816 MOV W
15KT 

FCST VA CLD +6HR: 02/1530Z SFC/FL400 S0140 W08122
- S0143 W08020 - S0314 W08110 - S0316 W08223 -
S0140 W08122 SFC/FL500 S0205 W07708 - S0220
W07608 - S0319 W07710 - S0255 W07750 - S0205
W07708 SFC/FL240 S0114 W08001 - S0159 W07820 -
S0202 W07820 - S0213 W08011 - S0114 W08001 

FCST VA CLD +12HR: 02/2130Z SFC/FL240 S0120
W08005 - S0204 W07818 - S0216 W08011 - S0120
W08005 SFC/FL400 NO VA EXPSFC/FL500 NO VA EXP

FCST VA CLD +18HR: 03/0330Z SFC/FL240 S0121
W08008 - S0200 W07820 - S0205 W07818 - S0216
W08015 - S0121 W08008 

RMK: LRG EXPLOSION DETECTED BY GEOPHYS INST AT
0902Z. GEOPHYS INST ESTS VA TO FL450. NWP MDLS
SUGGEST PSBLY TO FL500. VA EXPCD TO DISP BY
T+12HRS AS EVENT APPEARS TO BE SINGLE EXPLOSION
ALTHOUGH FURTHER EMISSIONS PSBL. ...HOSLEY

NXT ADVISORY: WILL BE ISSUED BY 20211202/1615Z