FVXX20 KNES 271714 VA ADVISORY DTG: 20210427/1714Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA: ECUADOR SUMMIT ELEV: 17159 FT (5230 M) ADVISORY NR: 2021/421 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. ERUPTION DETAILS: PSBL VA EMS OBS VA DTG: 27/1650Z OBS VA CLD: SFC/FL200 S0159 W07820 - S0201 W07819 - S0213 W07826 - S0210 W07830 - S0159 W07820 MOV SW 5KT FCST VA CLD +6HR: 27/2300Z NO VA EXP FCST VA CLD +12HR: 28/0500Z NO VA EXPNO VA EXP FCST VA CLD +18HR: 28/1100Z NO VA EXP RMK: PSBL VA EMS OBS FM STLT DATA AND WEBCAM MOVG SW TO ABT 15NM FM SUMMIT. XTNSV WX CLD COVER MAY OBSC MORE LGT VA BUT AMT DOES NOT APPR SIG. FL AND WINDS FM NWP ...MLEVINE NXT ADVISORY: WILL BE ISSUED BY 20210427/2315Z