FVXX20 KWBC 241819
VOLCANIC ASH ADVISORY
ISSUED: 2003DEC24/1830Z VAAC: WASHINGTON

VOLCANO: TUNGURAHUA  1502-08
LOCATION: S0128W07826    AREA: ECUADOR

SUMMIT ELEVATION: 16480 FT (5023 M)

ADVISORY NUMBER: 2003/644

INFORMATION SOURCE: GOES-12 IMAGERY. MODEL WINDS FORECAST. 
 
ERUPTION DETAILS: ASH EMISSIONS
                         
OBS ASH DATE/TIME: 24/1745Z

OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. 
WINDS FL100/250 MOVING TO W 10-15 KNOTS.                    
          
FCST ASH CLOUD+6H: NOT AVBL
FCST ASH CLOUD+12H: NOT AVBL  
FCST ASH CLOUD+18H: NOT AVBL

REMARKS: IT IS DIFFICULT TO DETECT ASH DUE TO EXTENSIVE
CLOUD COVER IN THE VICINITY OF THE VOLCANO. THE GEOPHYSICAL
INSTITUTE REPORTED A NEARLY CONSTANT EMISSION OF VAPOR AND
ASH THAT WAS MOVING DOWNWIND FROM THE SUMMIT AND ESTIMATED
BELOW FL220.

NEXT ADVISORY: WILL BE ISSUED BY 2003DEC25/0030Z.

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