FVXX21 KNES 121947
VA ADVISORY
DTG: 20210212/1947Z

VAAC: WASHINGTON

VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837

AREA: MEXICO

SUMMIT ELEV: 17802 FT (5426 M)

ADVISORY NR: 2021/173

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

ERUPTION DETAILS: NEW VA EMS

OBS VA DTG: 12/1916Z

OBS VA CLD: SFC/FL40 N1915 W09819 - N1910 W09816
- N1900 W09836 - N1901 W09837 - N1915 W09819 MOV
NE 40KT 

FCST VA CLD +6HR: 13/0130Z SFC/FL185 N1916 W09818
- N1910 W09816 - N1901 W09837 - N1902 W09838 -
N1916 W09818 

FCST VA CLD +12HR: 13/0730Z SFC/FL185 N1902
W09838 - N1901 W09813 - N1856 W09813 - N1901
W09838 - N1902 W09838 

FCST VA CLD +18HR: 13/1330Z NO VA EXP

RMK: THIN VA PLUME DETECTED ON STLT MOVG NE OF
SUMMIT. VA IS CASCADING DOWN SUMMIT SLOPE AS IT
MOVES AWAY FM SOURCE. NWP MDL WIND FCST TO TURN
COMING FM THE WNW BY T+12 HR. ...KONON

NXT ADVISORY: WILL BE ISSUED BY 20210213/0145Z