FVXX20 KNES 271947 VA ADVISORY DTG: 20150227/1947Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2015/040 INFO SOURCE: GOES-WEST. GFS WINDS. NAM WINDS. ABBA. VOLCANO WEB CAMERA. ERUPTION DETAILS: OCNL BRIEF EMISSION OF GAS AND ASH AT 1836Z AND 1933Z OBS VA DTG: 27/1915Z OBS VA CLD: SFC/FL240 N1915 W09813 - N1907 W09808 - N1858 W09835 - N1902 W09838 - N1915 W09813 MOV NE 25-30KT FCST VA CLD +6HR: 28/0130Z SFC/FL24 N2040 W09607 - N2016 W09558 - N1855 W09834 - N1902 W09837 - N2040 W09607 FCST VA CLD +12HR: 28/0730Z SFC/FL240 NO ASH EXP FCST VA CLD +18HR: 28/1330Z NO ASH EXP RMK: THE LEADING EDGE OF 1836Z VA IS ARND 18NM NE OF VOLCANO AND 1933 NOT SEEN YET. HGT EST FL240 ON WINDS OF 25-30KT. ...SWANSON NXT ADVISORY: WILL BE ISSUED BY 20150228/0145Z