FVXX20 KWBC 202223
VOLCANIC ASH ADVISORY
ISSUED: 2003DEC20/2230Z VAAC: WASHINGTON

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

SUMMIT ELEVATION: 16480 FT (5023 M)          

ADVISORY NUMBER: 2003/627

INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS
FORECAST.
 
ERUPTION DETAILS: ASH EMISSIONS
                         
OBS ASH DATE/TIME: 20/2145Z 

OBS ASH CLOUD: SFC/FL220 5 NM WIDE LINE BETWEEN S0128W07826
- S0128W07903.  ASH IS MOVING W 5-10 KNOTS.
                              
FCST ASH CLOUD+6H: NOT AVBL
FCST ASH CLOUD+12H: NOT AVBL  
FCST ASH CLOUD+18H: NOT AVBL

REMARKS: CLOUDS HAD CLEARED SUFFICIENTLY BY 2145Z TO REVEAL
AN ASH PLUME EXTENDING APPROXIMATELY 36 NM TO THE WEST OF
THE SUMMIT.  THE HEIGHT ASSIGNMENT IS UNCERTAIN BECAUSE THE
MODEL WINDS DO NOT REFLECT WHAT IS BEING OBSERVED IN
SATELLITE IMAGERY AND NO PILOT OR SURFACE REPORTS HAVE BEEN
RECEIVED TODAY.  TURK

NEXT ADVISORY: WILL BE ISSUED BY 2003DEC21/0430Z.    

NNNN"Attached Graphic Map Depicting Ash Only" 

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