FVXX21 KNES 190523 VA ADVISORY DTG: 20210619/0523Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/468 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. ERUPTION DETAILS: PSBL CONTG VA EMS. OBS VA DTG: 19/0500Z OBS VA CLD: SFC/FL140 N0001 W07800 - S0002 W07740 - S0005 W07740 - S0006 W07801 - N0001 W07800 MOV W 15KT FCST VA CLD +6HR: 19/1100Z SFC/FL140 N0000 W07800 - S0002 W07739 - S0005 W07738 - S0007 W07800 - N0000 W07800 FCST VA CLD +12HR: 19/1700Z NO VA EXP FCST VA CLD +18HR: 19/2300Z NO VA EXP RMK: VA NOT OBS IN SAT OR WEBCAM WITH WX CLD OBSCN OF SUMMIT AREA. CONTG VA EMS PSBL BASED ON RECENT ACT. OBS VA AREA ESTD FM NWP MDLS AND RPEV VAA. LTLCG FCST IN FL WINDS THRU T+6 HRS. ...CLARK NXT ADVISORY: WILL BE ISSUED BY 20210619/1130Z