FVXX25 KNES 122052
VA ADVISORY
DTG: 20210412/2052Z

VAAC: WASHINGTON

VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110

AREA: W_INDIES

SUMMIT ELEV: 3865 FT (1178 M)

ADVISORY NR: 2021/021

INFO SOURCE: GOES-16. NWP MODELS. HYSPLIT. ASH3D.
VOLCAT. 

ERUPTION DETAILS: CONT VA ALOFT

OBS VA DTG: 12/2040Z

OBS VA CLD: SFC/FL420 N1538 W05634 - N1332 W04315
- N0420 W04353 - N0834 W05820 - N1319 W06110 -
N1538 W05634 MOV E 30KT 

FCST VA CLD +6HR: 13/0230Z SFC/FL420 N1502 W05734
- N1316 W04134 - N0205 W04244 - N0814 W05834 -
N1312 W06114 - N1502 W05734 

FCST VA CLD +12HR: 13/0830Z SFC/FL420 N1458
W05641 - N1301 W04001 - N0048 W04010 - N0759
W05807 - N1301 W05953 - N1458 W05641 

FCST VA CLD +18HR: 13/1430Z SFC/FL420 N1452
W05543 - N1241 W03802 - N0024 W03852 - N0746
W05727 - N1452 W05543 

RMK: PSBL LGT EMS FM SUMMIT AND REMNANT VA FM
EARLIER EXPLOSIONS OBS ON STLT. REMNANT VA XTNDG
TO PSBLY 1050NM SE OF SUMMIT BFR BECMG VRY DFUS.
...MLEVINE

NXT ADVISORY: WILL BE ISSUED BY 20210413/0245Z
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