FVXX21 KNES 281001 VA ADVISORY DTG: 20210128/1001Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2021/124 INFO SOURCE: GOES-16. NWP MODELS. ERUPTION DETAILS: PSBL CONTG VA EMS. OBS VA DTG: 28/0951Z OBS VA CLD: SFC/FL190 N1921 W09850 - N1901 W09836 - N1900 W09838 - N1917 W09856 - N1921 W09850 MOV NW 15KT FCST VA CLD +6HR: 28/1600Z NO VA EXP FCST VA CLD +12HR: 28/2200Z NO VA EXP FCST VA CLD +18HR: 29/0400Z NO VA EXP RMK: VA NOT OBS IN SAT. WX CLDS JUST NW OF SUMMIT MAY OBSC PSBL VA CLDS. OBS VA AREA ESTD FM PREV VAA AND NWP MDLS WITH LOW CONFIDENCE. ...CLARK NXT ADVISORY: WILL BE ISSUED BY 20210128/1600Z