FVXX23 KNES 020159 VA ADVISORY DTG: 20210602/0159Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA: ECUADOR SUMMIT ELEV: 17159 FT (5230 M) ADVISORY NR: 2021/539 INFO SOURCE: GOES-16. NWP MODELS. VOLCAT. ERUPTION DETAILS: SIG VA EMS APRX 0040Z OBS VA DTG: 02/0130Z OBS VA CLD: SFC/FL220 S0150 W07824 - S0159 W07819 - S0201 W07820 - S0155 W07830 - S0150 W07824 MOV NW 10KT FCST VA CLD +6HR: 02/0730Z SFC/FL220 S0102 W07859 - S0200 W07818 - S0201 W07820 - S0114 W07918 - S0102 W07859 FCST VA CLD +12HR: 02/1330Z NO VA EXP FCST VA CLD +18HR: 02/1930Z NO VA EXP RMK: DENSE VA PUFF DETECTED ON STLT MOVG NW OF SUMMIT. HOTSPOT NOTED ON SWIR. NO CHG FCST TO MDL WIND AT FL NXT 6 HR, ...KONON NXT ADVISORY: WILL BE ISSUED BY 20210602/0800Z