FVXX21 KNES 272325 VA ADVISORY DTG: 20150727/2325Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2015/174 INFO SOURCE: GOES-EAST. GFS WINDS. ERUPTION DETAILS: EARLIER EMISSION PERSISTS OBS VA DTG: 27/2300Z OBS VA CLD: SFC/FL250 N1922 W09904 - N1916 W09847 - N1901 W09855 - N1901 W09916 - N1922 W09904 MOV WNW 10KT FCST VA CLD +6HR: 28/0500Z SFC/FL250 NO ASH EXP FCST VA CLD +12HR: 28/1100Z NO ASH EXP FCST VA CLD +18HR: 28/1700Z NO ASH EXP RMK: VA FROM EARLIER ERUPTION CONTINOUS TO PERSIST. IT IS TRACKING WNW AND IS 25NM FROM THE SUMMIT. VA EXPECTED TO DISSIPATE OVER NEXT 6HRS. ...SALEMI NXT ADVISORY: WILL BE ISSUED BY 20150728/0530Z