FVXX22 KNES 021438 VA ADVISORY DTG: 20190902/1438Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA: ECUADOR SUMMIT ELEV: 17159 FT (5230 M) ADVISORY NR: 2019/159 INFO SOURCE: GOES-EAST. GUAYAQUIL MWO. NWP MODELS. VOLCAT. ASHTAM. ERUPTION DETAILS: VA EM OBS VA DTG: 02/1420Z OBS VA CLD: SFC/FL250 S0159 W07820 - S0202 W07820 - S0217 W07942 - S0210 W07943 - S0159 W07820 MOV W 20KT FCST VA CLD +6HR: 02/2030Z SFC/FL250 S0159 W07820 - S0202 W07820 - S0213 W07943 - S0205 W07944 - S0159 W07820 FCST VA CLD +12HR: 03/0230Z SFC/FL250 NO ASH EXP FCST VA CLD +18HR: 03/0830Z NO ASH EXP RMK: CONS VA PLUME SEEN IN STLT. LEADING EDGE OF PLUME APPEARS LGT VA AND EXTND APRX 85 NM FROM SUMMIT. FL ESTIMATE OBTAINED FROM VO. ...VELASCO NXT ADVISORY: WILL BE ISSUED BY 20190902/2045Z