FVXX20 KNES 080529 VA ADVISORY DTG: 20211208/0529Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA: ECUADOR SUMMIT ELEV: 17159 FT (5230 M) ADVISORY NR: 2021/1068 INFO SOURCE: GOES-16. NWP MODELS. ERUPTION DETAILS: ONGOING VA EMS OBS VA DTG: 08/0500Z OBS VA CLD: SFC/FL200 S0155 W07835 - S0201 W07820 - S0202 W07820 - S0201 W07837 - S0155 W07835 MOV W 10KT FCST VA CLD +6HR: 08/1100Z NO VA EXP FCST VA CLD +12HR: 08/1700Z NO VA EXP FCST VA CLD +18HR: 08/2300Z NO VA EXP RMK: VA IS DIFFICULT TO OBS ON STLT. HOT SPOT CAN BE SEEN. VA IS DRAWN BASED ON PREV VAA AND NWP MDL WND. ...ZHU NXT ADVISORY: WILL BE ISSUED BY 20211208/1130Z