FVXX20 KNES 042228 VA ADVISORY DTG: 20151204/2228Z VAAC: WASHINGTON VOLCANO: COLIMA 341040 PSN: N1930 W10337 AREA: MEXICO SUMMIT ELEV: 12631 FT (3850 M) ADVISORY NR: 2015/657 INFO SOURCE: GOES-EAST. MEXICO CITY MWO. GFS WINDS. SEISMIC DETECTION. VOLCANO WEB CAMERA. ERUPTION DETAILS: POSSIBLE DISCREET VA EM OBS VA DTG: 04/2125Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA WINDS SFC/FL170 220/10KT FCST VA CLD +6HR: 05/0330Z FCST VA CLD +12HR: 05/0930Z FCST VA CLD +18HR: 05/1530Z RMK: POSSIBLE VA EM AT APRX 04/2125Z BASED ON SEISMIC DATA RPRTD BY MEXICO CITY. VA NOT IDENTIFIABLE IN STLT AND WEBCAM DUE TO WX CLDS. MODELS INDICATE WINDS MOV ENE ...VELASCO NXT ADVISORY: WILL BE ISSUED BY 20151205/0430Z