FVXX24 KNES 081151 VA ADVISORY DTG: 20210808/1151Z VAAC: WASHINGTON VOLCANO: RUIZ 351020 PSN: N0453 W07519 AREA: COLOMBIA SUMMIT ELEV: 17457 FT (5321 M) ADVISORY NR: 2021/099 INFO SOURCE: GOES-16. VONA. NWP MODELS. ERUPTION DETAILS: VA EMS RPRTD OBS VA DTG: 08/1120Z OBS VA CLD: SFC/FL190 N0504 W07529 - N0455 W07519 - N0452 W07521 - N0452 W07531 - N0504 W07529 MOV W 10KT FCST VA CLD +6HR: 08/1730Z SFC/FL190 N0510 W07538 - N0455 W07518 - N0452 W07520 - N0453 W07540 - N0510 W07538 FCST VA CLD +12HR: 08/2330Z NO VA EXP FCST VA CLD +18HR: 09/0530Z NO VA EXP RMK: VONA RPRTS VA TO AT LEAST FL180 MOVG WNW. NO VA SEEN IN WEBCAM OR STLT IMAGERY DUE TO WX CLDS. ANY NEW EMS ARE FCST TO MOV W/WNW THRU T+6 HRS. ...COVERDALE NXT ADVISORY: WILL BE ISSUED BY 20210808/1745Z