FVXX25 KNES 130623
VA ADVISORY
DTG: 20210413/0623Z

VAAC: WASHINGTON

VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110

AREA: W_INDIES

SUMMIT ELEV: 3865 FT (1178 M)

ADVISORY NR: 2021/023

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

ERUPTION DETAILS: WIDESPREAD REMNANT VA.

OBS VA DTG: 13/0600Z

OBS VA CLD: SFC/FL440 N1538 W04332 - N0853 W04534
- N0933 W05814 - N1139 W05832 - N1358 W05507 -
N1538 W04332 MOV SE 35KT 

FCST VA CLD +6HR: 13/1200Z SFC/FL440 N1328 W05540
- N1214 W04240 - N0612 W04419 - N0829 W05617 -
N1328 W05540 

FCST VA CLD +12HR: 13/1800Z SFC/FL440 N1152
W05402 - N1053 W04237 - N0437 W04332 - N0729
W05429 - N1152 W05402 

FCST VA CLD +18HR: 14/0000Z SFC/FL440 N1053
W05152 - N0940 W04217 - N0446 W04255 - N0707
W05212 - N1053 W05152 

RMK: REMNANT VA OBS UP TO 1000 NM E OF SUMMIT. VA
FCST TO MOV ESE TO SE THRU FCST PERIOD. VA BECMG
MORE DIFFUSE AND BKN. ...CLARK

NXT ADVISORY: WILL BE ISSUED BY 20210413/1230Z
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