FVXX20 KWBC 311123 CCA
VOLCANIC ASH ADVISORY-CORRECTION
ISSUED: 2003AUG31/1125Z VAAC: WASHINGTON
 
VOLCANO: TUNGURAHUA  1502-08
LOCATION: S0128W07826    AREA: ECUADOR
 
SUMMIT ELEVATION: 16480 FT (5023 M)

ADVISORY NUMBER: 2003/190

INFORMATION SOURCE: GOES-12 IMAGERY.  

ERUPTION DETAILS: ONGOING ERUPTION SINCE 20/1745Z.
                                            
OBS ASH DATE/TIME: 31/0815Z        

OBS ASH CLOUD: ASH NOT IDENTIFIABLE IN SATELLITE DATA. WINDS
SFC/FL270 MOVING SW TO W 10-15 KNOTS.
                           
FCST ASH CLOUD+6H: SEE SIGMETS AND VAFTAD.

REMARKS: CORRECTION TO CHANGE OBS ASH DATE/TIME LINE. DUE TO
SATELLITE RAPID SCANNING OPERATIONS THE IMAGERY IS CUT OFF
SOUTH OF S0139. A HOTSPOT HAS BEEN DETECTED AT THE VOLCANO
SINCE 0645Z AND A PLUME CAN BE BRIEFLY SEEN SPREADING WEST
TO SOUTHWEST FROM THE SUMMIT TO BEYOND THE IMAGERY. THE
HEIGHT IS ESTIMATED BASED ON CLOUD MOTION BECAUSE THE MODEL
WINDS ARE NOT VERIFYING.
                           
NEXT ADVISORY: WILL BE ISSUED BY 2003AUG31/1500Z.

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