FVXX20 KNES 181652 VA ADVISORY DTG: 20210518/1652Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/373 INFO SOURCE: GOES-16. GUAYAQUIL MWO. VONA. NWP MODELS. ERUPTION DETAILS: VA CLD RPRTD. OBS VA DTG: 18/1620Z OBS VA CLD: SFC/FL140 S0002 W07752 - S0004 W07740 - S0007 W07738 - S0010 W07753 - S0002 W07752 MOV W 10KT FCST VA CLD +6HR: 18/2230Z SFC/FL140 N0005 W07754 - S0004 W07738 - S0006 W07739 - S0005 W07758 - N0005 W07754 FCST VA CLD +12HR: 19/0430Z NO VA EXP FCST VA CLD +18HR: 19/1030Z NO VA EXP RMK: VONA RPRTS VA CLD AT 1513Z TO 300M ABV SUMMIT. WEBCAM NOW OBSCD BY WX CLD CVR. VA CLD NOT OBSD BY STLT. GUAYAQUIL MWO RPRTS VA CLD TO FL140. NWP MDLS FCST VA TO MOV WNW BY T+6. ...HOSLEY NXT ADVISORY: WILL BE ISSUED BY 20210518/2245Z