FVXX23 KNES 051656 VA ADVISORY DTG: 20210605/1656Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0005 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/427 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. VOLCAT. ERUPTION DETAILS: VA CLDS OBS IN SUMMIT WEBCAM OBS VA DTG: 05/1620Z OBS VA CLD: SFC/FL140 S0001 W07753 - S0004 W07740 - S0006 W07740 - S0008 W07753 - S0001 W07753 MOV W 5KT FCST VA CLD +6HR: 05/2230Z SFC/FL140 S0004 W07740 - S0006 W07738 - S0006 W07738 - S0017 W07750 - S0008 W07756 - S0004 W07740 FCST VA CLD +12HR: 06/0430Z NO VA EXP FCST VA CLD +18HR: 06/1030Z NO VA EXP RMK: OCNL VA CLDS OBS IN SUMMIT WEBCAM. SUMMIT HOTSPOT OBS IN STLT. LOW CONF IN VAA DUE TO WX CLDS. VA HGT FM PREV VAA. VA DIR FM NWP MDLS SHOWS W-LY TO SW-LY MOVMT TREND THRU T+6. ...SAMBUCCI NXT ADVISORY: WILL BE ISSUED BY 20210605/2300Z