FVXX25 KNES 101113
VA ADVISORY
DTG: 20210410/1113Z

VAAC: WASHINGTON

VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110

AREA: W_INDIES

SUMMIT ELEV: 3865 FT (1178 M)

ADVISORY NR: 2021/009

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

ERUPTION DETAILS: CONTG EXPLOSIVE ERUPTION.

OBS VA DTG: 10/0940Z

OBS VA CLD: SFC/FL080 N1450 W05846 - N1414 W05939
- N1335 W06119 - N1416 W06141 - N1450 W05846 MOV
E 10KT SFC/FL470 N1838 W04758 - N1409 W05401 -
N1204 W06103 - N1335 W06117 - N1456 W05822 -
N1838 W04758 MOV E 40KT SFC/FL520 N1447 W05710 -
N1204 W05419 - N0927 W05616 - N1317 W06109 -
N1407 W05932 - N1447 W05710 MOV SE 35KT 

FCST VA CLD +6HR: 10/1530Z SFC/FL080 N1447 W05847
- N1337 W06105 - N1317 W06208 - N1424 W06220 -
N1447 W05847 SFC/FL470 N1801 W04926 - N1722
W04108 - N1340 W04914 - N1328 W06121 - N1443
W05736 - N1801 W04926 SFC/FL520 N1503 W05553 -
N1138 W05037 - N0844 W05450 - N1325 W06113 -
N1503 W05553 

FCST VA CLD +12HR: 10/2130Z SFC/FL080 NO VA
EXPSFC/FL470 N1618 W03846 - N1043 W03855 - N1237
W05232 - N1332 W06117 - N1523 W05414 - N1618
W03846 SFC/FL520 N1459 W05057 - N0836 W04315 -
N0725 W05132 - N1325 W06030 - N1459 W05057 

FCST VA CLD +18HR: 11/0330Z SFC/FL470 N1503
W05541 - N1205 W03811 - N0622 W03958 - N1229
W05644 - N1503 W05541 SFC/FL520 NO VA EXP

RMK: VA REACHING OVER 700 NMI ENE FM SUMMIT. MAIN
PLUME AT FL470 MOVG ENE WITH THE HIGHEST TOPS TO
FL520 MOVG ESE. ASHFALL N AND NE OF SUMMIT SEEN
MOVG E OVR ST LUCIA. ...HOSLEY

NXT ADVISORY: WILL BE ISSUED BY 20210410/1715Z