FVXX22 KNES 311439 VA ADVISORY DTG: 20230531/1439Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA: ECUADOR SUMMIT ELEV: 17342 FT (5286 M) ADVISORY NR: 2023/407 INFO SOURCE: GOES-16. NWP MODELS. ERUPTION DETAILS: POSS VA EMS EST VA DTG: 31/1420Z EST VA CLD: SFC/FL200 S0133 W07857 - S0200 W07820 - S0201 W07820 - S0143 W07904 - S0133 W07857 MOV NW 25KT FCST VA CLD +6HR: 31/2030Z SFC/FL200 S0132 W07858 - S0159 W07820 - S0201 W07820 - S0151 W07906 - S0132 W07858 FCST VA CLD +12HR: 01/0230Z NO VA EXP FCST VA CLD +18HR: 01/0830Z NO VA EXP RMK: VA EMS DIFFICULT TO SEE IN STLT IMG DUE TO HEAVY MET CLDS. VA EMS LIKELY CONT MOV NW FM SUMMIT. FL AND MVMT BASED ON STLT AND NWP MODELS. ...GATLING NXT ADVISORY: WILL BE ISSUED BY 20230531/2045Z