FVXX20 KNES 291236 VA ADVISORY DTG: 20190829/1236Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2019/938 INFO SOURCE: GOES-EAST. NWP MODELS. VOLCAT. ERUPTION DETAILS: POSS VA EM OBS VA DTG: 29/1220Z OBS VA CLD: SFC/FL150 N0004 W07801 - S0004 W07739 - S0005 W07739 - S0002 W07801 - N0004 W07801 MOV NW 20-25KT FCST VA CLD +6HR: 29/1830Z SFC/FL150 NO ASH EXP FCST VA CLD +12HR: 30/0030Z NO ASH EXP FCST VA CLD +18HR: 30/0630Z NO ASH EXP RMK: VA EM NOT DETECTED IN STLT WI LAST 6 HRS DUE TO DENS MET CLDS IN VCY BUT VA EM POSS BASED ON RECENT ACT. NEW VA EM THAT OCCUR WI NEXT 6 HRS EXPECTED TO MOV WNW AND EXTND APRX 25 NM FROM SUMMIT. ...VELASCO NXT ADVISORY: WILL BE ISSUED BY 20190829/1830Z