FVXX25 KNES 092346
VA ADVISORY
DTG: 20210409/2346Z

VAAC: WASHINGTON

VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110

AREA: W_INDIES

SUMMIT ELEV: 3865 FT (1178 M)

ADVISORY NR: 2021/007

INFO SOURCE: GOES-16. NWP MODELS. ASH3D. VOLCAT.
RADIOSONDE. SOCIAL MEDIA. 

ERUPTION DETAILS: CONT EXPLOSIVE ERUPTION

OBS VA DTG: 09/2320Z

OBS VA CLD: SFC/FL220 N1326 W05820 - N1215 W05842
- N1226 W05946 - N1301 W06100 - N1315 W06104 -
N1314 W06106 - N1304 W06043 - N1326 W05937 -
N1326 W05820 MOV SE 30KT SFC/FL420 N1459 W05807 -
N1329 W05826 - N1329 W05936 - N1323 W05953 -
N1407 W06026 - N1407 W06026 - N1456 W05947 -
N1459 W05807 MOV E 35KT SFC/FL500 N1408 W06026 -
N1323 W05952 - N1307 W06044 - N1316 W06109 -
N1323 W06111 - N1408 W06026 MOV E 40KT 

FCST VA CLD +6HR: 10/0530Z SFC/FL220 NO VA
EXPSFC/FL420 N1511 W05550 - N1332 W05553 - N1334
W05805 - N1502 W05741 - N1511 W05550 SFC/FL500
N1443 W05654 - N1314 W05723 - N1315 W05928 -
N1422 W05853 - N1435 W05835 - N1443 W05654 

FCST VA CLD +12HR: 10/1130Z SFC/FL420 NO VA
EXPSFC/FL500 N1444 W05258 - N1245 W05332 - N1315
W05537 - N1439 W05504 - N1444 W05258 

FCST VA CLD +18HR: 10/1730Z NO VA EXP

RMK: ONGOING VIOLENT VA EMS DUE TO EXPLOSIVE
ERUPTION. MULTIPLE FLT LVLS. NEAR SUMMIT REGION
TO TROP.  ELSEWHERE SE TO FL220 AND FURTHER E TO
FL420. VAA UPDATED ACCORDINGLY TO REFLECT ONGOING
EVENT. ...LEE

NXT ADVISORY: WILL BE ISSUED BY 20210410/0545Z