FVXX20 KWBC 212242
VOLCANIC ASH ADVISORY
ISSUED: 2003DEC21/2230Z VAAC: WASHINGTON

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

SUMMIT ELEVATION: 16480 FT (5023 M)          

ADVISORY NUMBER: 2003/631

INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS
FORECAST. GUAYAQUIL MWO SIGMET.  GEOPHYSICAL INSTITUTE.
 
ERUPTION DETAILS: ASH EMISSIONS
                         
OBS ASH DATE/TIME: 21/2215Z 

OBS ASH CLOUD: SFC/250 4 NM WIDE LINE BETWEEN S0128W07826 -
S0132W07852. 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: AN ASH PLUME EXTENDED APPROXIMATELY 50 NM TO THE
WEST OF THE SUMMIT AT 2215Z.  THE HEIGHT IS BASED ON A 2025Z
OBSERVATION OF ASH TO FL250 FROM THE GEOPHYSICAL INSTITUTE.  

NEXT ADVISORY: WILL BE ISSUED BY 2003DEC22/0430Z.    

NNNN"Attached Graphic Map Depicting Ash Only" 

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