FVXX20 KNES 181808 VA ADVISORY DTG: 20230418/1808Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17693 FT (5393 M) ADVISORY NR: 2023/466 INFO SOURCE: GOES-16. NWP MODELS. ERUPTION DETAILS: VA EMS OBS OBS VA DTG: 18/1741Z OBS VA CLD: SFC/FL200 N1902 W09837 - N1802 W09805 - N1759 W09820 - N1859 W09838 - N1902 W09837 MOV S 20KT SFC/FL220 N1902 W09837 - N1813 W09545 - N1706 W09632 - N1900 W09837 - N1902 W09837 MOV SE 25KT FCST VA CLD +6HR: 18/2330Z SFC/FL200 N1901 W09835 - N1804 W09816 - N1801 W09848 - N1859 W09838 - N1901 W09835 SFC/FL220 N1901 W09836 - N1737 W09659 - N1707 W09746 - N1859 W09838 - N1901 W09836 FCST VA CLD +12HR: 19/0530Z SFC/FL200 NO VA EXPSFC/FL220 N1901 W09836 - N1735 W09753 - N1727 W09847 - N1859 W09838 - N1901 W09836 FCST VA CLD +18HR: 19/1130Z NO VA EXP RMK: VA EMS OBS IN STLT IMG MOV S EXT 60 NMI FM SUMMIT. VA ALSO OBS MOV SE EXT 160 NMI FM SUMMIT. A MORE S MVMT EXP BY T+12. FL AND MVMT BASED ON STLT AND NWP MODELS. ...GATLING NXT ADVISORY: WILL BE ISSUED BY 20230419/0015Z