FVXX20 KWBC 120732       
VOLCANIC ASH ADVISORY
ISSUED: 2003OCT12/0730Z VAAC: WASHINGTON
 
VOLCANO: TUNGURAHUA  1502-08
LOCATION: S0128W07826    AREA: ECUADOR
 
SUMMIT ELEVATION: 16480 FT (5023 M)

ADVISORY NUMBER: 2003/355

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

ERUPTION DETAILS: EXHALATION AT 10/1645Z

OBS ASH DATE/TIME: 12/0645Z

OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. 
WINDS FL100/180 MOVING W 5-10 KNOTS. FL180/240 MOVING S 5-10
KNOTS. FL240/300 MOVING W 15 KNOTS.

FCST ASH CLOUD+6H: SEE SIGMETS.

REMARKS: NO ASH COULD BE DETECTED IN SATELLITE IMAGERY
THROUGH 0045Z DUE TO EXTENSIVE CLOUD COVER. THE GEOPHYSICAL
INSTITUTE REPORT FOR SATURDAY INDICATED INTERMITTENT SMALL
ERUPTIONS NEARLY 3 TO 4 HOURS APART. THEREFORE UNTIL CLEAR
IMAGERY OR THE INSTITUTE INDICATES LESS ACTIVITY WE WILL
CONTINUE ADVISORIES WITH MODEL WINDS FORECASTS. 

NEXT ADVISORY: WILL BE ISSUED BY 2003OCT12/1330Z.  
 
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