FVXX25 KNES 092102
VA ADVISORY
DTG: 20210409/2102Z

VAAC: WASHINGTON

VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110

AREA: W_INDIES

SUMMIT ELEV: 3865 FT (1178 M)

ADVISORY NR: 2021/006

INFO SOURCE: GOES-16. NWP MODELS. HYSPLIT. PILOT
RPRT. UWI SEISMIC RESEARCH CENTRE. 

ERUPTION DETAILS: NEW EXPLOSIVE EM PLUS REMNANT
VA.

OBS VA DTG: 09/2020Z

OBS VA CLD: SFC/FL200 N1316 W05952 - N1238 W05939
- N1219 W06024 - N1228 W06114 - N1255 W06106 -
N1245 W06036 - N1316 W05952 MOV SE 10KT SFC/FL400
N1413 W05805 - N1340 W05756 - N1322 W05932 -
N1342 W05934 - N1413 W05805 MOV E 35KT SFC/FL520
N1358 W06007 - N1303 W06020 - N1319 W06109 -
N1323 W06110 - N1332 W06104 - N1358 W06007 MOV E
40KT 

FCST VA CLD +6HR: 10/0230Z SFC/FL200 NO VA
EXPSFC/FL400 NO VA EXPSFC/FL520 N1413 W05819 -
N1331 W05803 - N1315 W05928 - N1355 W05928 -
N1413 W05819 

FCST VA CLD +12HR: 10/0830Z SFC/FL520 N1426
W05532 - N1331 W05529 - N1337 W05703 - N1410
W05702 - N1426 W05532 

FCST VA CLD +18HR: 10/1430Z NO VA EXP

RMK: NEW EM SHOWING CLOUD TOP TEMPS AT -78C,
WHICH CONVEYS HEIGHT OF ~52KFT. NUMEROUS
LIGHTNING STRIKES IN VOLC CB.  VA MOV OFF TO E.
REMNANT VA FM EARLIER EMS DISPERSING W/I 6 HRS.
...LEE

NXT ADVISORY: WILL BE ISSUED BY 20210410/0300Z