FVXX21 KNES 040431 VA ADVISORY DTG: 20230104/0431Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17693 FT (5393 M) ADVISORY NR: 2023/016 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. VOLCAT. ERUPTION DETAILS: VA EMS OBS OBS VA DTG: 04/0406Z OBS VA CLD: SFC/FL200 N1923 W09818 - N1908 W09807 - N1859 W09836 - N1903 W09838 - N1923 W09818 MOV NE 10KT FCST VA CLD +6HR: 04/1000Z SFC/FL200 N1928 W09807 - N1914 W09756 - N1859 W09836 - N1902 W09838 - N1928 W09807 FCST VA CLD +12HR: 04/1600Z SFC/FL200 N1931 W09803 - N1915 W09751 - N1859 W09835 - N1902 W09838 - N1931 W09803 FCST VA CLD +18HR: 04/2200Z NO VA EXP RMK: VA EMS OBS FM WEBCAM AND STLT MV NE ABT 30 NM FM SUMMIT. LTLCG EXP IN MDL WINDS THRU T+12 HRS. FCST BASED ON STLT AND NWP MDLS. ...BROWN NXT ADVISORY: WILL BE ISSUED BY 20230104/1030Z