FVXX20 KNES 201028 VA ADVISORY DTG: 20180520/1028Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0005 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2018/521 INFO SOURCE: GOES-EAST. NWP MODELS. CIMSS VOLCAT. VOLCANO WEB CAMERA. ERUPTION DETAILS: VA EM OBS VA DTG: 20/1000Z OBS VA CLD: SFC/FL150 N0001 W07756 - S0004 W07740 - S0005 W07740 - S0003 W07757 - N0001 W07756 MOV NW 15KT FCST VA CLD +6HR: 20/1600Z SFC/FL150 N0004 W07802 - S0004 W07740 - S0006 W07740 - S0002 W07802 - N0004 W07802 FCST VA CLD +12HR: 20/2200Z SFC/FL150 NO ASH EXP FCST VA CLD +18HR: 21/0400Z NO ASH EXP RMK: DISCRETE VA EM SEEN IN STLT IMAGERY. OCNL HOT SPOTS AT SUMMIT. VA EXTND APRX 20 NM WNW OF SUMMIT BEFORE OBSC BY MET CLDS. DISCRETE VA EM EXPECTED TO CONT BASED ON RECENT HOT SPOTS AND VA ACT. ...VELASCO NXT ADVISORY: WILL BE ISSUED BY 20180520/1630Z