FVXX20 KWBC 210423
VOLCANIC ASH ADVISORY
ISSUED: 2003DEC21/0430Z VAAC: WASHINGTON

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

SUMMIT ELEVATION: 16480 FT (5023 M)          

ADVISORY NUMBER: 2003/628

INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS
FORECAST. GUAYAQUIL MWO SIGMET.  GEOPHYSICAL INSTITUTE.
 
ERUPTION DETAILS: ASH EMISSIONS
                         
OBS ASH DATE/TIME: 21/0345Z 

OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA.
WINDS FL100/220 MOVING TO W 5-10 KNOTS.
                              
FCST ASH CLOUD+6H: NOT AVBL
FCST ASH CLOUD+12H: NOT AVBL  
FCST ASH CLOUD+18H: NOT AVBL

REMARKS: THE GEOPHYSICAL INSTITUTE INDICATES THAT ASH WAS
SEEN AT 21/0220Z.  NO DIRECTION WAS GIVEN BUT GFS MODEL
WINDS INDICATE ASH WOULD BE MOVING TO THE WEST OF THE
SUMMIT.  ASH CANNOT BE SEEN IN SATELLITE IMAGERY THROUGH
20/0345Z.  CLOUDS IN THE VICINITY OF THE VOLCANO IS MAKING
IT DIFFICULT TO DETECT ASH.  WE WILL CONTINUE TO MONITOR AND
ADVISE AS NEEDED....KIBLER

NEXT ADVISORY: WILL BE ISSUED BY 2003DEC21/1030Z.    

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