FVXX20 KNES 182239 VA ADVISORY DTG: 20190818/2239Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA: ECUADOR SUMMIT ELEV: 17159 FT (5230 M) ADVISORY NR: 2019/134 INFO SOURCE: GOES-EAST. NWP MODELS. VOLCAT. ERUPTION DETAILS: POSS ONGOING VA EMS OBS VA DTG: 18/2220Z OBS VA CLD: SFC/FL190 S0156 W07853 - S0201 W07819 - S0201 W07818 - S0206 W07853 - S0156 W07853 MOV W 15-20KT FCST VA CLD +6HR: 19/0430Z SFC/FL190 NO ASH EXP FCST VA CLD +12HR: 19/1030Z NO ASH EXP FCST VA CLD +18HR: 19/1630Z NO ASH EXP RMK: VA NOT VISIBLE IN STLT IMAGERY DUE TO WX CLD IN AREA. POSS VA EM LIKELY. OBS BASED ON NWP MODEL GUIDANCE. ...BOLL NXT ADVISORY: WILL BE ISSUED BY 20190819/0445Z