FVXX20 KWBC 310049
VOLCANIC ASH ADVISORY
ISSUED: 2003DEC31/0100Z VAAC: WASHINGTON

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

SUMMIT ELEVATION: 16480 FT (5023 M)

ADVISORY NUMBER: 2003/670

INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS
FORECAST                  
 
ERUPTION DETAILS: CONTINUOUS GAS AND ASH EMISSIONS.
                         
OBS ASH DATE/TIME: 31/0015Z

OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA.
WINDS FL100/250 MOVING TO NE 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 CLOUD COVER IN
THE VICINITY OF THE VOLCANO. ANY ASH TO FL250 SHOULD MOVE TO
THE NE AT 10-15 KNOTS.

NEXT ADVISORY: WILL BE ISSUED BY 2003DEC31/0700Z.

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