FVXX20 KNES 051016 VA ADVISORY DTG: 20210105/1016Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA: ECUADOR SUMMIT ELEV: 17159 FT (5230 M) ADVISORY NR: 2021/018 INFO SOURCE: GOES-16. NWP MODELS. VOLCAT. ERUPTION DETAILS: VA EM OBS IN SAT. OBS VA DTG: 05/0950Z OBS VA CLD: SFC/FL200 S0155 W07811 - S0200 W07809 - S0201 W07820 - S0159 W07820 - S0155 W07811 MOV E 5KT FCST VA CLD +6HR: 05/1600Z SFC/FL200 S0145 W07802 - S0153 W07756 - S0201 W07819 - S0159 W07820 - S0145 W07802 FCST VA CLD +12HR: 05/2200Z NO VA EXP FCST VA CLD +18HR: 06/0400Z NO VA EXP RMK: VA CLD OBS EXT 10 NM ENE FM SUMMIT. WX CLDS PARTIALLY OBSC AREA. OBS VA FL BASED ON VOLCAT ALERT AND NWP MDLS. FL WINDS EXP TO BACK SLIGHTLY THRU T+6 HRS. ...CLARK NXT ADVISORY: WILL BE ISSUED BY 20210105/1615Z