FVXX20 KNES 051335 VA ADVISORY DTG: 20210605/1335Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA: ECUADOR SUMMIT ELEV: 17159 FT (5230 M) ADVISORY NR: 2021/556 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. VOLCAT. ERUPTION DETAILS: VA CLDS CONT OBS IN STLT IMAGERY OBS VA DTG: 05/1300Z OBS VA CLD: SFC/FL200 S0152 W07956 - S0158 W07820 - S0206 W07819 - S0220 W07956 - S0152 W07956 MOV W 15KT FCST VA CLD +6HR: 05/1900Z SFC/FL200 S0150 W08006 - S0158 W07819 - S0208 W07819 - S0223 W08005 - S0150 W08006 FCST VA CLD +12HR: 06/0100Z SFC/FL200 S0158 W07819 - S0207 W07817 - S0234 W08002 - S0204 W08005 - S0158 W07819 FCST VA CLD +18HR: 06/0700Z SFC/FL200 S0158 W07820 - S0207 W07817 - S0242 W08002 - S0214 W08006 - S0158 W07820 RMK: LGT VA CLDS CONT OBS IN STLT MOVG W FM SUMMIT. LGT VA CLDS OBS OVER SEGU REGION. VA HGT/DIR FM PREV VAA AND STLT. NWP MDLS SHOWS W-LY TO WSW-LY MOVMT TREND THRU T+18. ...SAMBUCCI NXT ADVISORY: WILL BE ISSUED BY 20210605/1930Z