FVXX23 KNES 091939 VA ADVISORY DTG: 20211009/1939Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA: ECUADOR SUMMIT ELEV: 17159 FT (5230 M) ADVISORY NR: 2021/876 INFO SOURCE: GOES-16. NWP MODELS. ERUPTION DETAILS: INTMT VA EMS OBSD OBS VA DTG: 09/1910Z OBS VA CLD: SFC/FL200 S0144 W07831 - S0158 W07819 - S0200 W07821 - S0152 W07835 - S0144 W07831 MOV NW 10KT FCST VA CLD +6HR: 10/0100Z SFC/FL200 S0145 W07832 - S0157 W07819 - S0202 W07822 - S0153 W07840 - S0145 W07832 FCST VA CLD +12HR: 10/0700Z NO VA EXP FCST VA CLD +18HR: 10/1300Z NO VA EXP RMK: INTMT VA EMS OBSD IN STLT MOVG NW OF SUMMIT. NWP MDL FCST LTLCG THRU T+6HRS. ...ZENG NXT ADVISORY: WILL BE ISSUED BY 20211010/0145Z