FVXX20 KWBC 281338
VOLCANIC ASH ADVISORY
ISSUED: 2003AUG28/1400Z VAAC: WASHINGTON
 
VOLCANO: TUNGURAHUA  1502-08
LOCATION: S0128W07826    AREA: ECUADOR
 
SUMMIT ELEVATION: 16480 FT (5023 M)

ADVISORY NUMBER: 2003/178

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

ERUPTION DETAILS: NEWER STRONGER ERUPTION AT 28/1100Z.
                                            
OBS ASH DATE/TIME: 28/1245Z        

OBS ASH CLOUD: SFC/FL240 S0128W07826 S0128W07943 S0150W08046
S0231W07938 S0158W07903 S0204W07831 S0128W07826 MOVING W 15-
20 KNOTS.

SFC/FL300 S0128W07826 S0131W07857 S0137W07857 S0138W07839
S0144W07837 S0144W07831 S0128W07826 MOVING W 15-20 KNOTS. 

FCST ASH CLOUD+6H: SEE SIGMETS AND VAFTAD.

REMARKS: AT ABOUT 1100Z THIS MORNING A VERY BRIGHT HOTSPOT
WAS OBSERVED AT THE SUMMIT AND IN SUBSEQUENT IMAGES AN AREA
OF THICKER ASH WAS OBSERVED IN VISIBLE AND MULTI-SPECTRAL
IMAGERY.  THE NEWLY ERUPTED ASH CLOUD HAS BEEN OBSERVED BY
AIRCRAFT AND GROUND OBSERVERS TO BE NEAR FL300.  ALSO THE
PLUME IS BIFURCATED WITH ONE AREA MOVING JUST SOUTH OF DUE
WEST AND THE OTHER MOVING SSW THIS TIME THIS AREA IS
CONTAINED WITHIN A LARGER AREA OF THINNER ASH OBSERVED
STRETCHING TO THE ECUADORIAN COASTLINE AND SOUTH CLOSE TO
GUAYAQUIL. THIS ASH IS REPORTED AS SFC/FL240. PLEASE SEE
GRAPHIC AT WWW.SSD.NOAA.GOV/VAAC/MESSAGES.HTML WHERE VAAC
MUST BE CAPITALIZED...GALLINA    

NEXT ADVISORY: WILL BE ISSUED BY 2003AUG28/2000Z.

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"Attached Graphic Map Depicting Ash Only" 

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