FVXX20 KNES 312135
VA ADVISORY
DTG: 20171231/2135Z

VAAC: WASHINGTON

VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837

AREA: MEXICO

SUMMIT ELEV: 17802 FT (5426 M)

ADVISORY NR: 2017/339

INFO SOURCE: GOES-EAST. NWP MODELS. 

ERUPTION DETAILS: PSBL VA EMS

OBS VA DTG: 31/2117Z

OBS VA CLD: SFC/FL200 N1929 W09837 - N1928 W09821
- N1858 W09834 - N1858 W09841 - N1929 W09837 MOV
N 10-15KT 

FCST VA CLD +6HR: 01/0330Z SFC/FL200 N1943 W09823
- N1940 W09757 - N1856 W09835 - N1858 W09841 -
N1943 W09823 

FCST VA CLD +12HR: 01/0930Z SFC/FL200 NO ASH EXP

FCST VA CLD +18HR: 01/1530Z NO ASH EXP

RMK: PSBL VA IS SEEN IN STLT IMAGERY EXTD ABT 25
NMI NNE FM SUMMIT. THE EM COULD BE ONLY STEAM/GAS
BUT A VA SGL IS SEEN IN STLT IMAGERY. ...WHISNANT

NXT ADVISORY: WILL BE ISSUED BY 20180101/0330Z