FVXX20 KWBC 111944       
VOLCANIC ASH ADVISORY
ISSUED: 2003OCT11/1930Z VAAC: WASHINGTON
 
VOLCANO: TUNGURAHUA  1502-08
LOCATION: S0128W07826    AREA: ECUADOR
 
SUMMIT ELEVATION: 16480 FT (5023 M)

ADVISORY NUMBER: 2003/353

INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS
FORECAST.

ERUPTION DETAILS: EXHALATION AT 10/1645Z

OBS ASH DATE/TIME: 11/1915Z

OBS ASH CLOUD: SFC/FL300 8 NM WIDE BETWEEN S0128W07826
S0122W07756.  ASH IS MOVING E 5-10 KNOTS.

FCST ASH CLOUD+6H: SEE SIGMETS.

REMARKS: CLOUDS HAVE CLEARED SUFFICIENTLY TO DETECT A
POSSIBLE ASH PLUME EXTENDING APPROXIMATELY 32 NM TO THE EAST
OF THE SUMMIT.  A PROMINENT HOT SPOT HAS ALSO BEEN OBSERVED
OVER THE LAST 2 HOURS.  THE HEIGHT ASSIGNMENT IS DIFFICULT
SINCE THE MODEL WINDS FORECAST DOES NOT MATCH THE OBSERVED
MOTION.  THE LAST OBSERVATION OF ASH AT 1430Z TO FL330 WAS
THE BASIS OF THE PRESENT ASH ASSIGNMENT.  TURK

NEXT ADVISORY: WILL BE ISSUED BY 2003OCT12/0130Z.  
 
NNNN"Attached Graphic Map Depicting Ash Only" 

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