FVXX25 KNES 112250
VA ADVISORY
DTG: 20210411/2250Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W_INDIES
SUMMIT ELEV: 3865 FT (1178 M)
ADVISORY NR: 2021/016
INFO SOURCE: GOES-16. NWP MODELS. HYSPLIT.
VOLCAT. RADIOSONDE. SOCIAL MEDIA.
ERUPTION DETAILS: ONGOING EXPLOSIVE EMS.
OBS VA DTG: 11/2230Z
OBS VA CLD: SFC/FL100 N1439 W06105 - N1306 W06113
- N1143 W06053 - N1140 W06241 - N1403 W06231 -
N1439 W06105 MOV W 5KT SFC/FL400 N2240 W03041 -
N2117 W02418 - N1711 W02510 - N1033 W03720 -
N0934 W04406 - N1255 W04605 - N1602 W04927 -
N2059 W03743 - N2240 W03041 MOV E 30KT SFC/FL400
N1444 W01857 - N1015 W01826 - N0957 W02559 - N1250
W02541 - N1444 W01857 MOV SE 35KT SFC/FL480
N1556 W04927 - N1258 W04605 - N0934 W04411 -
N0740 W04843 - N0847 W05432 - N1146 W06053 -
N1324 W06105 - N1444 W06103 - N1556 W04927 MOV E
35 KT
FCST VA CLD +6HR: 12/0430Z SFC/FL100 N1507 W06045
- N1301 W06111 - N1204 W06236 - N1434 W06307 -
N1507 W06045 SFC/FL400 N2149 W03054 - N2000
W02538 - N1340 W02546 - N0844 W04434 - N1201
W04447 - N1617 W04851 - N1950 W04029 - N2149
W03054 SFC/FL480 N1615 W04851 - N1159 W04447 -
N0844 W04437 - N0653 W04940 - N0847 W05506 -
N1143 W06047 - N1306 W06105 - N1502 W06045 -
N1615 W04851
FCST VA CLD +12HR: 12/1030Z SFC/FL100 N1556
W06029 - N1258 W06105 - N1245 W06338 - N1518
W06315 - N1556 W06029 SFC/FL400 N2105 W02439 -
N1308 W02510 - N1146 W04649 - N1641 W04749 -
N2105 W02439 SFC/FL480 N1635 W04751 - N1151
W04652 - N0716 W05026 - N1054 W05938 - N1159
W06047 - N1253 W06108 - N1322 W06105 - N1500
W06032 - N1635 W04751
FCST VA CLD +18HR: 12/1630Z SFC/FL100 N1612
W06252 -N1556 W06004 - N1253 W06119 - N1439
W06333 -N1612 W06252 SFC/FL400 N2059 W02340 -
N1041 W02355 - N1015 W04649 - N1623 W04846 -
N2059 W02340 SFC/FL480 N1623 W04848 - N1023
W04649 - N0743 W05019 - N1025 W05953 - N1250
W06113 - N1324 W06105 - N1426 W06040 - N1623
W04848
RMK: INTERMITTENT LARGE EMS CONT. FURTHERMOST VA
SIGNAL EXTENDS TO 2400 NM E FM SUMMIT ASSOCIATED
WITH INITIAL EM AND MOSTLY GASES. HEAVIER VA
CONCENTRATION FURTHER W AS ONE NEARS SOURCE
REGION. ...LEE
NXT ADVISORY: WILL BE ISSUED BY 20210412/0445Z
Full Size Graphic
-