FVXX25 KNES 131228
VA ADVISORY
DTG: 20210413/1228Z

VAAC: WASHINGTON

VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110

AREA: W_INDIES

SUMMIT ELEV: 3865 FT (1178 M)

ADVISORY NR: 2021/024

INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. ASH3D.
SOCIAL MEDIA. SEISMIC. 

ERUPTION DETAILS: NEW VA EMS OBS.

OBS VA DTG: 13/1150Z

OBS VA CLD: SFC/FL350 N1329 W06106 - N1328 W06023
- N1245 W05952 - N1234 W06038 - N1323 W06116 -
N1329 W06106 MOV SE 30KT SFC/FL400 N1338 W05043 -
N0928 W03858 - N0305 W04814 - N1001 W05917 -
N1338 W05043 MOV SE 30KT 

FCST VA CLD +6HR: 13/1800Z SFC/FL350 N1331 W06104
- N1324 W05932 - N1136 W05622 - N1010 W05928 -
N1323 W06117 - N1331 W06104 SFC/FL400 N1202
W05240 - N0928 W03923 - N0305 W04831 - N1001
W05910 - N1202 W05240 

FCST VA CLD +12HR: 14/0000Z SFC/FL350 N1332
W06101 - N1323 W05928 - N1221 W05659 - N1110
W05449 - N0952 W05919 - N1322 W06117 - N1332
W06101 SFC/FL400 NO VA EXP

FCST VA CLD +18HR: 14/0600Z SFC/FL350 N1344
W06048 - N1337 W05324 - N1034 W05211 - N0950
W05917 - N1323 W06115 - N1344 W06048 

RMK: NEW HVY VA EMS OBS IN STLT MOV ESE OF SUMMIT
QUICKLY IN HIGH WINDS. FL BASED ON VA MVMT, NWP
MODEL GDNC WINDS AND RECENT ACTVTY. VA EXPCD TO
CONT AND MOV ESE OF SUMMIT PRIOR TO TURNING ENE
AND ACCEL. LARGE AREA OF REMNANT VA OBS TO SE OF
NEW EMS. ...JLEVINE

NXT ADVISORY: WILL BE ISSUED BY 20210413/1830Z