FVXX25 KNES 041145
VA ADVISORY
DTG: 20210904/1145Z

VAAC: WASHINGTON

VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837

AREA: MEXICO

SUMMIT ELEV: 17802 FT (5426 M)

ADVISORY NR: 2021/523

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

ERUPTION DETAILS: INTMT VA EMS.

OBS VA DTG: 04/1116Z

OBS VA CLD: SFC/FL200 N1910 W09842 - N1901 W09837
- N1859 W09838 - N1905 W09847 - N1910 W09842 MOV
NW 10KT 

FCST VA CLD +6HR: 04/1730Z SFC/FL200 N1916 W09846
- N1902 W09836 - N1900 W09838 - N1905 W09855 -
N1916 W09846 

FCST VA CLD +12HR: 04/2330Z NO VA EXP

FCST VA CLD +18HR: 05/0530Z NO VA EXP

RMK: VA EM OBSD BY STLT ARND 1020Z. ANOTHER VA EM
OBSD ON WEBCAM AT 1053Z THAT IS NOT SEEN BY STLT.
OBS VA MOVMT AGREES WITH 00Z MMMX RADIOSONDE AND
IS BASIS FOR FL. NWP MDLS FCST LTLCG IN WIDNS
THRU T+6HRS. ...HOSLEY

NXT ADVISORY: WILL BE ISSUED BY 20210904/1745Z
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