FVXX23 KNES 311538 VA ADVISORY DTG: 20180831/1538Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA: ECUADOR SUMMIT ELEV: 17159 FT (5230 M) ADVISORY NR: 2018/028 INFO SOURCE: GOES-EAST. NWP MODELS. CIMSS VOLCAT. ERUPTION DETAILS: DISCRETE VA EM PSBL OBS VA DTG: 31/1515Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA WINDS SFC/FL190 045/10-15KT FCST VA CLD +6HR: 31/2130Z FCST VA CLD +12HR: 01/0330Z FCST VA CLD +18HR: 01/0930Z RMK: NO VA EM DETECTED IN STLT SINCE 1345Z. EARLIER VA EM DISP. MET CLDS PARTIALLY OBSC SUMMIT AND VCY. DISCRETE VA EM PSBL AT ANY TIME BASED ON RECENT ACT. EARLIER EM FANNED S TO W AND DID NOT AGREE WITH MODELS. ...VELASCO NXT ADVISORY: WILL BE ISSUED BY 20180831/2145Z