FVXX24 KNES 191008
VA ADVISORY
DTG: 20210419/1008Z

VAAC: WASHINGTON

VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110

AREA: W_INDIES

SUMMIT ELEV: 3865 FT (1178 M)

ADVISORY NR: 2021/052

INFO SOURCE: GOES-16. NWP MODELS. NO ERUPTION.
DETACHED VA PLUMES.

ERUPTION DETAILS: 

OBS VA DTG: /Z

OBS VA CLD: SFC/FL100 N1333 W06735 - N1333 W06619
- N1254 W06533 - N1220 W06530 - N1219 W06641 -
N1244 W06750 - N1333 W06735 MOV W 20KT SFC/FL230
N1126 W06242 - N1120 W06222 - N1120 W06222 -
N1054 W06200 - N1049 W06306 - N1053 W06333 -
N1113 W06336 - N1125 W06314 - N1126 W06242 MOV SW
15KT 

FCST VA CLD +6HR: 19/1600Z SFC/FL100 N1339 W07044
- N1335 W06947 - N1329 W06832 - N1237 W06820 -
N1241 W06917 - N1242 W07023 - N1303 W07050 -
N1339 W07044 SFC/FL230 N1020 W06449 - N1011
W06426 - N0953 W06421 - N0938 W06432 - N0938
W06459 - N1005 W06514 - N1020 W06449 

FCST VA CLD +12HR: 19/2200Z SFC/FL100 NO VA
EXPSFC/FL230 NO VA EXP

FCST VA CLD +18HR: 20/0400Z NO VA EXP

RMK: NO CURRENT VA EMS DETECTED FM SUMMIT ON
STLT.  TWO DETACHED THIN VA PLUMES, ONE TO FL100
MOVG W AND ANOTHER TO FL230 MOVG SW. BOTH VA
PLUMES SHUD DSIPT BY T+12 HR. ...KONON

NXT ADVISORY: WILL BE ISSUED BY 20210419/1615Z