FVXX20 KWBC 231543 VOLCANIC ASH ADVISORY ISSUED: 2003NOV23/1600Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/525 INFORMATION SOURCE: GOES-12 IMAGERY. GEOPHYSICAL INSTITUTE. GFS MODEL WINDS FORECAST. ERUPTION DETAILS: OCCASIONAL ASH EMISSIONS OBS ASH DATE/TIME: 23/1515Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/FL200 MOVING W 5 KNOTS. FCST ASH CLOUD+6H: SEE SIGMETS REMARKS: ASH WAS NOT OBSERVED IN THE CURRENT SATELLITE IMAGERY THROUGH 23/1515Z DUE TO EXTENSIVE CLOUD COVER OVER THE REGION. WINDS ARE GENERALLY WEST AT LESS THAN 5 KNOTS. . NEXT ADVISORY: WILL BE ISSUED BY 2003NOV23/2200Z NNNN