FVXX20 KNES 161426 VOLCANIC ASH ADVISORY ISSUED: 2006MAR16/1425Z VAAC: WASHINGTON VOLCANO: SANTA MARIA 1402-03 LOCATION: N1445 W09133 AREA: GUATEMALA SUMMIT ELEVATION: 12375 FT (3772 M) ADVISORY NUMBER: 2006/050 INFORMATION SOURCE: GOES-12. GFS WINDS. ERUPTION DETAILS: EXHALATION OBSERVED AT 16/1332Z OBS ASH DATE/TIME: 16/1332Z OBS ASH CLOUD: SFC/FL180 N1447 W09152 - N1446 W09143 - N1446 W09143 - N1444 W09143 - N1443 W09149 - N1447 W09152 MOVING W 20-25 KNOTS. FCST ASH CLOUD +6H: 16/1930Z NO VA EXP FCST ASH CLOUD +12H: 17/0130Z NO VA EXP FCST ASH CLOUD +18H: 17/0730Z NO VA EXP REMARKS: GOES-12 IMAGERY SHOWED A SERIES OF EXHALATIONS STARTING AROUND 1200Z. THE LATEST AT 1345Z WAS A DETACHED PLUME ABOUT 25 NMI WEST OF THE SUMMIT. ...BROWN NEXT ADVISORY: WILL BE ISSUED BY 2006MAR16/2030Z NNNN