FVXX25 KNES 120934
VA ADVISORY
DTG: 20210412/0934Z

VAAC: WASHINGTON

VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110

AREA: W_INDIES

SUMMIT ELEV: 3865 FT (1178 M)

ADVISORY NR: 2021/018

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

ERUPTION DETAILS: NEW VA EM TO FL420 MOV ESE.

OBS VA DTG: 12/0910Z

OBS VA CLD: SFC/FL100 N1504 W06220 - N1334 W06053
- N1316 W06113 - N1426 W06252 - N1504 W06220 MOV
NW 10KT SFC/FL400 N1719 W03821 - N1641 W03131 -
N1058 W03157 - N0631 W03608 - N0530 W04339 -
N0722 W05001 - N0907 W05421 - N1518 W05425 -
N1719 W03821 MOV E 35KT SFC/FL420 N1518 W05425 -
N0900 W05421 - N1217 W06114 - N1343 W06105 -
N1518 W05425 MOV E 30KT 

FCST VA CLD +6HR: 12/1500Z SFC/FL100 N1553 W06125
- N1323 W06104 - N1315 W06120 - N1520 W06226 -
N1553 W06125 SFC/FL400 N1519 W05226 - N1504
W03141 - N0431 W03417 - N0833 W05250 - N1519
W05226 SFC/FL420 N1513 W05229 - N0830 W05259 -
N1228 W06110 - N1345 W06059 - N1513 W05229 

FCST VA CLD +12HR: 12/2100Z SFC/FL100 N1559
W06050 - N1317 W06108 - N1317 W06120 - N1553
W06157 - N1559 W06050 SFC/FL400 N1516 W05026 -
N1336 W03112 - N0332 W03241 - N0804 W05038 -
N1516 W05026 SFC/FL420 N1507 W05032 - N0801
W05044 - N1225 W06116 - N1336 W06047 - N1507
W05032 

FCST VA CLD +18HR: 13/0300Z SFC/FL100 N1601
W06043 - N1319 W06105 - N1318 W06121 - N1555
W06158 - N1601 W06043 SFC/FL400 N1429 W04834 -
N1028 W03115 - N0216 W03232 - N0705 W05002 -
N1429 W04834 SFC/FL420 N1423 W04840 - N0707
W05008 - N1237 W06110 - N1339 W06104 - N1423
W04840 

RMK: NEW VA EM OBS 0800Z ESTD TO FL420 MOV ESE.
LL VA MOV NW OVER E CARIBBEAN SEA. DIFFUSE
REMNANT VA OBS UP TO 1750 NM E OF SUMMIT. DISTANT
VA EXP TO MOV ESE BY T+12 HRS. ...CLARK

NXT ADVISORY: WILL BE ISSUED BY 20210412/1530Z