FVXX25 KNES 091538
VA ADVISORY
DTG: 20210409/1538Z

VAAC: WASHINGTON

VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110

AREA: W_INDIES

SUMMIT ELEV: 3865 FT (1178 M)

ADVISORY NR: 2021/004

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

ERUPTION DETAILS: ONGOING ERUPTION

OBS VA DTG: 09/1345Z

OBS VA CLD: SFC/FL060 N1334 W06108 - N1308 W06107
- N1259 W06135 - N1332 W06138 - N1334 W06108 MOV
W 10KT SFC/FL400 N1437 W05842 - N1217 W05846 -
N1301 W06105 - N1334 W06105 - N1437 W05842 MOV E
45KT 

FCST VA CLD +6HR: 09/2000Z SFC/FL060 N1337 W06203
- N1335 W06107 - N1310 W06105 - N1259 W06203 -
N1337 W06203 SFC/FL400 N1608 W05525 - N1125
W05512 - N1247 W06107 - N1404 W06110 - N1608
W05525 

FCST VA CLD +12HR: 10/0200Z SFC/FL060 N1346
W06401 - N1337 W06112 - N1305 W06105 - N1243
W06359 - N1346 W06401 SFC/FL400 N1804 W05006 -
N1132 W05008 - N1245 W06110 - N1328 W06116 -
N1804 W05006 

FCST VA CLD +18HR: 10/0800Z SFC/FL060 N1359
W06803 - N1332 W06112 - N1312 W06107 - N1205
W06803 - N1359 W06803 SFC/FL400 N1729 W04342 -
N1143 W04344 - N1249 W06112 - N1335 W06116 -
N1729 W04342 

RMK: UPDATED TO LWR FL AND ACCOUNT FOR SE MOVG
VA. ONGOING EXPLOSIVE ERUPTION OBS FM UWI SEISMIC
RESEARCH CENTRE AND STLT DATA. VA SPRDG W TO OVER
15NM AND E TO OVER 130NM. LWR LVL VA FCST TO SPRD
GENLY W WHILE UPR LVL VA FCST TO SPRD E THRU
T+18. FL AND WINDS FM HYSPLIT ...MLEVINE

NXT ADVISORY: WILL BE ISSUED BY 20210409/2145Z