FVXX20 KWBC 210352                                     
VOLCANIC ASH ADVISORY
ISSUED: 2003AUG21/0400Z  VAAC: WASHINGTON
 
VOLCANO: TUNGURAHUA  1502-08
LOCATION: S0128W07826    AREA: ECUADOR
                              
SUMMIT ELEVATION: 16480 FT (5023 M)
 
ADVISORY NUMBER: 2003/148
 
INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS
FORECAST.
 
ERUPTION DETAILS: ASH ERUPTION STARTED AT 20/1745Z
 
OBS ASH DATE/TIME: 21/0315Z
 
OBS ASH CLOUD: SFC/FL200 5 NM WIDE LINE BETWEEN
S0128W07826 S0140W07846.  ASH IS MOVING SW 5 KNOTS.   
                                                  
FCST ASH CLOUD+6H: SEE SIGMETS.
                                   
REMARKS: SATELLITE IMAGERY THROUGH 0315Z SHOWED A
NARROW PLUME EXTENDING AT LEAST APPROXIMATELY 22 NM TO
THE SOUTHWEST OF THE SUMMIT.  ASH DETECTION WAS
HAMPERED BY THE PRESENCE OF METEOROLOGICAL CLOUD IN
THE VICINITY OF THE SUMMIT. 
 
NEXT ADVISORY: WILL BE ISSUED BY 2003AUG21/1000Z.
               
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"Attached Graphic Map Depicting Ash Only" 

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