FVXX25 KNES 110658
VA ADVISORY
DTG: 20210411/0658Z

VAAC: WASHINGTON

VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110

AREA: W_INDIES

SUMMIT ELEV: 3865 FT (1178 M)

ADVISORY NR: 2021/013

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

ERUPTION DETAILS: FRQT EXPLOSIVE ERUPTIONS.

OBS VA DTG: 11/0610Z

OBS VA CLD: SFC/FL400 N1849 W03025 - N0813 W04105
- N1034 W05106 - N1849 W04753 - N1849 W03025 MOV
SE 40KT SFC/FL470 N1853 W04758 - N1026 W05110 -
N1022 W05537 - N1255 W06059 - N1414 W06107 -
N1853 W04758 MOV E 30KT SFC/FL520 N1326 W05913 -
N1133 W05636 - N1129 W06004 - N1311 W06122 -
N1326 W05913 MOV SE 20KT 

FCST VA CLD +6HR: 11/1200Z SFC/FL400 N2015 W03705
- N1710 W02705 - N0714 W03500 - N1010 W05003 -
N1901 W04627 - N2015 W03705 SFC/FL470 N1904
W04639 - N1007 W04959 - N0950 W05426 - N1255
W06122 - N1358 W06114 - N1904 W04639 SFC/FL520
N1331 W05802 - N1053 W05505 - N1041 W05913 -
N1315 W06119 - N1331 W05802 

FCST VA CLD +12HR: 11/1800Z SFC/FL400 N1856
W04449 - N1837 W03504 - N1354 W02507 - N0733
W02819 - N0947 W04722 - N1856 W04449 SFC/FL470
N1849 W04501 - N0927 W04722 - N0927 W05145 -
N1235 W06107 - N1422 W06114 - N1849 W04501
SFC/FL520 N1331 W05755 - N1038 W05453 - N1022
W05909 - N1311 W06119 - N1331 W05755 

FCST VA CLD +18HR: 12/0000Z SFC/FL400 N1936
W04216 - N1718 W03033 - N1251 W02230 - N0733
W02811 - N0904 W04532 - N1936 W04216 SFC/FL470
N1940 W04212 - N0859 W04544 - N0919 W05335 -
N1315 W06122 - N1417 W06111 - N1940 W04212
SFC/FL520 N1338 W05719 - N0919 W05232 - N0931
W05802 - N1303 W06119 - N1338 W05719 

RMK: NUMEROUS EXPLOSIVE ERUPTIONS SEEON OVR THE
PAST 6 HRS. VA STARTING TO BECOME DIFFUSE AT
EASTERN END. FCSTS ASSUME SIMILAR LVLS OF ACT
CONT. ...HOSLEY

NXT ADVISORY: WILL BE ISSUED BY 20210411/1300Z