FVXX21 KNES 121951 VA ADVISORY DTG: 20080812/1950Z VAAC: WASHINGTON VOLCANO: MASAYA 1404-10 PSN: N1159 W08609 AREA: NICARAGUA SUMMIT ELEV: 2083 FT (635 M) ADVISORY NR: 2008/004 INFO SOURCE: GOES-12. GFS WINDS. ERUPTION DETAILS: ONGOING EMISSIONS OF STEAM WITH PSBL ASH. OBS VA DTG: 12/1915Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA WINDS SFC/FL070 090/10KT FCST VA CLD +6HR: 13/0130Z FCST VA CLD +12HR: 13/0730Z FCST VA CLD +18HR: 13/1330Z RMK: PSBL ASH NOT SEEN DUE TO WEATHER CLOUDS. WINDS STAY OUT OF E THRU OUTLOOK PERIOD. ...EVANS NXT ADVISORY: WILL BE ISSUED BY 20080813/0145Z NNNN