FVXX20 KWBC 011307
VOLCANIC ASH ADVISORY                        
ISSUED: 2003NOV01/1330Z VAAC: WASHINGTON
 
VOLCANO: TUNGURAHUA  1502-08
LOCATION: S0128W07826    AREA: ECUADOR
 
SUMMIT ELEVATION: 16480 FT (5023 M)
                                                       
ADVISORY NUMBER: 2003/440

INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS
FORECAST. PILOT REPORT. GUAYAQUIL MWO SIGMET.

ERUPTION DETAILS: CONTINUED ASH AND STEAM EXHALATIONS

OBS ASH DATE/TIME: 01/1245Z

OBS ASH CLOUD: SFC/FL230 10 NM WIDE LINE BETWEEN S0128W07826
S0031W07753. ASH IS MOVING NE 10-15 KNOTS.
                                             
FCST ASH CLOUD+6H: SEE SIGMETS

REMARKS: VERY CLEAR MORNING AGAIN OVER CENTRAL ECUADOR WHICH
HAS PROVIDED A GREAT PICTURE OF THE ASH PLUME. THE PLUME
EXTENDS OVER 50 NM TOWARD THE NE OF THE SUMMIT.  ASH WITHIN
THE PLUME IS MOVING TOWARD THE NE AT ABOUT 10 KNOTS...WITH
INDICATIONS THAT THERE IS SOME ASH MOVING EAST VERY NEAR THE
SUMMIT AND EXTENDS LESS THAN 2 NM TO THE EAST.  THIS AREA IS
HAS BEEN REPORTED BY A RECENT PILOT REPORT TO BE AT FL230.
WILL CONTINUE TO MONITOR CLOSELY AND MAY UPDATE IF NEEDED... 
                                                       
NEXT ADVISORY: WILL BE ISSUED BY 2003NOV01/1930Z.

NNNN"Attached Graphic Map Depicting Ash Only" 

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