FVXX20 KWBC 271500
VOLCANIC ASH ADVISORY 
ISSUED: 2003APR27/1500Z VAAC: WASHINGTON
 
VOLCANO: SANTA MARIA 1402-03
LOCATION: N1445W09133    AREA: GUATEMALA
                              
SUMMIT ELEVATION: 12375 FT (3772 M)

ADVISORY NUMBER: 2003/003          
 
INFORMATION SOURCE: GOES-12 IMAGERY.  GFS MODEL WINDS FORECAST. 

ERUPTION DETAILS: MINOR ASH AND STEAM EXHALATIONS.
 
OBS ASH DATE/TIME: 27/1445Z.
 
OBS ASH CLOUD: SFC/FL120 5 NM WIDE LINE OF ASH EXTENDING BETWEEN
N1445W09133 N1433W09141. ASH IS MOVING SW 5-10 KNOTS.

FCST ASH CLOUD +6H: SEE SIGMETS
 
REMARKS: MORNING VISIBLE IMAGERY SHOWS A FEW MINOR EXHALATIONS OF
ASH AND STEAM FROM THE SANTIAGUITO CONE OF THE SANTA MARIA
VOLCANO. THE ASH HAS HELD TOGETHER WELL AND IS MOVING SLOWLY TO
THE SOUTH-SOUTHWEST AT ABOUT 5-10 KNOTS. THE PLUME IS ALSO
EVIDENT ON MULTI-SPECTRAL IMAGERY...ADDING TO THE FACT THAT ASH
IS MOST LIKELY PRESENT. THE ASH HEIGHT IS APPROXIMATED TO FL120
BASED ON GFS MODEL WINDS AND CONSISTENCY WITH PREVIOUS SMALL
ERUPTIONS OF SANTIAGUITO FROM INFORMATION WITHIN INSIVUMEH
BULLETINS...GALLINA   
                                
NEXT ADVISORY: WILL BE ISSUED BY 2003APR27/2100Z

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"Attached Graphic Map Depicting Ash Only" 

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