FVXX21 KNES 271425 VA ADVISORY DTG: 20150727/1425Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2015/171 INFO SOURCE: GOES-EAST. GFS WINDS. ERUPTION DETAILS: EMISSION AROUND 27/1300Z OBS VA DTG: 27/1400Z OBS VA CLD: SFC/FL200 N1906 W09847 - N1855 W09846 - N1855 W09853 - N1906 W09854 - N1906 W09847 MOV W 5-10KT FCST VA CLD +6HR: 27/2000Z SFC/FL200 NO ASH EXP FCST VA CLD +12HR: 28/0200Z NO ASH EXP FCST VA CLD +18HR: 28/0800Z NO ASH EXP RMK: IMAGERY SHOWS PUFF OF VA MOVING W . AT 27/1415Z PUFF OBSERVED 15 NMI TO THE W OF THE SUMMIT. ...SCHWARTZ NXT ADVISORY: WILL BE ISSUED BY 20150727/2030Z