FVXX24 KNES 230314
VA ADVISORY
DTG: 20210423/0314Z

VAAC: WASHINGTON

VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110

AREA: W_INDIES

SUMMIT ELEV: 3865 FT (1178 M)

ADVISORY NR: 2021/058

INFO SOURCE: GOES-16. NWP MODELS. 

ERUPTION DETAILS: REMNANT VA AND LOW LEVEL EM

OBS VA DTG: 23/0250Z

OBS VA CLD: SFC/FL070 N1404 W06307 - N1332 W06110
- N1311 W06115 - N1342 W06316 - N1404 W06307 MOV
W 10KT SFC/FL220 N1523 W06341 - N1439 W06318 -
N1411 W06344 - N1457 W06421 - N1523 W06341 MOV NW
10KT SFC/FL250 N1447 W05944 - N1431 W05923 -
N1350 W05956 - N1406 W06014 - N1447 W05944 MOV SE
5KT 

FCST VA CLD +6HR: 23/0900Z SFC/FL070 N1426 W06256
- N1329 W06109 - N1310 W06109 - N1404 W06313 -
N1426 W06256 SFC/FL220 N1649 W06611 - N1636
W06523 - N1552 W06546 - N1613 W06626 - N1649
W06611 SFC/FL250 N1417 W05833 - N1404 W05808 -
N1310 W05849 - N1329 W05923 - N1417 W05833 

FCST VA CLD +12HR: 23/1500Z SFC/FL070 N1502
W06237 - N1323 W06104 - N1311 W06108 - N1437
W06256 - N1502 W06237 SFC/FL220 NO VA EXP
SFC/FL250 NO VA EXP

FCST VA CLD +18HR: 23/2100Z SFC/FL070 N1444
W06238 - N1326 W06103 - N1310 W06107 - N1423
W06258 - N1444 W06238 

RMK: VA AT FL220 CENTERED 170 NM NW OF SUMMIT. VA
TO FL250 CENTERED 90 NM NE OF SUMMIT. LOW LEVEL
EM TO FL070 EXT 140 NM WNW OF SUMMIT. OBS VA AT
FL250 DOES NOT AGREE WITH MODEL FCST WINDS SO HGT
UNCERTAIN. ...TURK

NXT ADVISORY: WILL BE ISSUED BY 20210423/0915Z