FVXX21 KNES 200810 VA ADVISORY DTG: 20180920/0810Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA: ECUADOR SUMMIT ELEV: 17159 FT (5230 M) ADVISORY NR: 2018/086 INFO SOURCE: GOES-EAST. NWP MODELS. CIMSS VOLCAT. ABBA. ERUPTION DETAILS: ONGOING VA EMS. OBS VA DTG: 20/0745Z OBS VA CLD: SFC/FL200 S0149 W07835 - S0159 W07819 - S0202 W07820 - S0203 W07837 - S0149 W07835 MOV W 15-20KT FCST VA CLD +6HR: 20/1400Z SFC/FL200 S0151 W07838 - S0159 W07819 - S0202 W07820 - S0205 W07840 - S0151 W07838 FCST VA CLD +12HR: 20/2000Z SFC/FL200 S0155 W07840 - S0159 W07820 - S0200 W07820 - S0209 W07840 - S0155 W07840 FCST VA CLD +18HR: 21/0200Z SFC/FL200 S0153 W07841 - S0159 W07818 - S0202 W07820 - S0205 W07840 - S0153 W07841 RMK: VOLCAT AND SW IR STLT IMAGERY CONTINUE TO SHOW INTERMITTENT VA PUFFS MOV WNW FROM SUMMIT. VA EMS BECOMING DIFFUSE AFTER ABOUT 20 NM DOWNWIND. ...LEE NXT ADVISORY: WILL BE ISSUED BY 20180920/1415Z