FVXX20 KWBC 081810
VOLCANIC ASH ADVISORY                        
ISSUED: 2003NOV08/1830Z VAAC: WASHINGTON
 
VOLCANO: TUNGURAHUA  1502-08
LOCATION: S0128W07826    AREA: ECUADOR
 
SUMMIT ELEVATION: 16480 FT (5023 M)
                                                       
ADVISORY NUMBER: 2003/470

INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS
FORECAST. 

ERUPTION DETAILS: ASH AND STEAM EXHALATIONS

OBS ASH DATE/TIME: 08/1745Z

OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA
WINDS FL100/230 MOVING W 10-15 KNOTS.
                                             
FCST ASH CLOUD+6H: SEE SIGMETS
                                   
REMARKS: THE LAST REPORT OF VOLCANIC ASH ACTIVITY WAS A
MODERATE EXHALATION AT 07/2200Z NOTED IN THE GEOPHYSICAL
INSTITUTE DAILY REPORT. BUT EXTENSIVE WEATHER CLOUD COVERAGE
REMAINED IN PLACE FOR ALL OF THE OVERNIGHT AND MOST OF THE
EARLY MORNING. RECENT BREAKS IN THE CLOUDS ON VISIBLE AND
USING MULTI-SPECTRAL IR TECHNIQUES LEAD TO SPECULATION THAT
ASH ACTIVITY HAS ENDED FOR THE MOMENT. HOWEVER...DUE TO THE
HIGH FREQUENCY OF SMALL ASH LADEN ERUPTIONS OVER THE PAST
FEW WEEKS/MONTHS...WILL NOT END ADVISORIES YET. WILL
CONTINUE TO CLOSELY MONITOR. 
               
NEXT ADVISORY: WILL BE ISSUED BY 2003NOV09/0030Z.            

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