FVXX20 KNES 201445 VOLCANIC ASH ADVISORY ISSUED: 20070420/1445Z VAAC: WASHINGTON VOLCANO: SANTA MARIA 1402-03 LOCATION: N1445 W09133 AREA: GUATEMALA SUMMIT ELEVATION: 12375 FT (3772 M) ADVISORY NUMBER: 2007/050 INFORMATION SOURCE: GOES-12. GFS WINDS. ERUPTION DETAILS: EMISSION OF GASES AND POSSIBLE ASH OBS ASH DATE/TIME: 20/1415Z OBS ASH CLOUD: SFC/FL130 3NM WIDE LINE BETWEEN N1440 W09144 - N1445 W09134. ASH IS MOVING W 10 KNOTS. FCST ASH CLOUD +6H: 20/2030Z FCST ASH CLOUD +12H: 21/0230Z FCST ASH CLOUD +18H: 21/0830Z REMARKS: VISIBLE IMAGERY SHOWS A FAINT PLUME WITH SEVERAL DISCREET PUFFS EXTENDING APPROXIMATELY 15 NMI TO THE WEST-SOUTHWEST OF THE SUMMIT ... NEXT ADVISORY: WILL BE ISSUED BY 20070420/2045Z