FVXX22 KNES 311319
VA ADVISORY
DTG: 20210331/1319Z

VAAC: WASHINGTON

VOLCANO: PACAYA 342110
PSN: N1422 W09035

AREA: GUATEMALA

SUMMIT ELEV: 8373 FT (2552 M)

ADVISORY NR: 2021/169

INFO SOURCE: GOES-16. NWP MODELS. 

ERUPTION DETAILS: VA EMS CONT

OBS VA DTG: 31/1250Z

OBS VA CLD: SFC/FL100 N1423 W09036 - N1423 W09035
- N1339 W09044 - N1342 W09057 - N1423 W09036 MOV
SW 10KT 

FCST VA CLD +6HR: 31/1900Z SFC/FL100 N1423 W09036
- N1423 W09035 - N1320 W09111 - N1326 W09123 -
N1423 W09036 

FCST VA CLD +12HR: 01/0100Z SFC/FL100 N1423
W09035 - N1423 W09035 - N1356 W09057 - N1401
W09105 - N1423 W09035 

FCST VA CLD +18HR: 01/0700Z SFC/FL100 N1424
W09035 - N1423 W09035 - N1356 W09058 - N1401
W09106 - N1424 W09035 

RMK: UPDATED VAA EARLY DUE TO VA SPREADING MUCH
FURTHER THAN FCST. WELL-DEFINED MDTLY DENSE VA 
PLUME DETECTED ON HIRES VIS STLT APROX 75 NM SW 
OF SUMMIT MOVG SW. VA SHUD SPREAD TO AT LEAST 
150 NM FM SUMMIT OVR OPEN PAC NXT 6 HR. 
...KONON

NXT ADVISORY: WILL BE ISSUED BY 20210331/1915Z
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