FVXX20 KWBC 201325
VOLCANIC ASH ADVISORY                        
ISSUED: 2003NOV20/1330Z VAAC: WASHINGTON
 
VOLCANO: TUNGURAHUA  1502-08
LOCATION: S0128W07826    AREA: ECUADOR
 
SUMMIT ELEVATION: 16480 FT (5023 M)
                                                       
ADVISORY NUMBER: 2003/512 

INFORMATION SOURCE: GOES-12 IMAGERY. GEOPHYSICAL INSTITUTE.

ERUPTION DETAILS: OUGASING WITH LIGHT ASH SINCE 12Z
                                                  
OBS ASH DATE/TIME: 20/1245Z.

OBS ASH CLOUD: SFC/FL190 S0128W07826 S0123W07824 S0112W07826
S0115W07810 S0126W07813 S0128W07826 MOVING NE 5-10 KNOTS. 
     
FCST ASH CLOUD+6H: SEE SIGMETS
                                   
REMARKS: EARLY MORNING VISIBLE IMAGERY SHOWED A PLUME FROM
THE SUMMIT OF TUNGURAHUA. GEOPHYSICAL INSTITUTE INDICATED
THAT THE PLUME WAS MOSTLY STEAM WITH LIGHT MIXED ASH.  THEY
ALSO INDICATED THAT THE PLUME WAS NOT MORE THAN 500 M ABOVE
THE SUMMIT...SO HEIGHT IS ESTIMATED AT FL190 AT THIS TIME.
WINDS ARE VARIABLE CURRENTLY BUT PLUME IS MOVING NE SO WILL
CONTINUE THE TREND. WILL UPDATE IF CHANGE IS
DRAMATIC...GALLINA     

NEXT ADVISORY: WILL BE ISSUED BY 2003NOV20/1930Z.
             
NNNN"Attached Graphic Map Depicting Ash Only" 

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