FVXX20 KWBC 072027 VOLCANIC ASH ADVISORY ISSUED: 2003DEC07/2030Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/579 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS. GEOPHYSICAL INSTITUTE ERUPTION DETAILS: OCCASIONAL ASH EMISSIONS OBS ASH DATE/TIME: 07/2015Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE IN SATELLITE DATA. WINDS SFC/FL280 MOVING TO W 10 KNOTS. FCST ASH CLOUD+6H: NOT AVBL FCST ASH CLOUD+12H: NOT AVBL FCST ASH CLOUD+18H: NOT AVBL REMARKS: ASH CAN NOT BE SEEN IN THE CURRENT SATELLITE IMAGERY DUE TO EXTENSIVE CLOUDS OVER THE REGION. THE LAST OBSERVATION OF ASH BY THE GEOPHYSICAL INSTITUTE WAS AT 07/1716Z WITH ASH REPORTED TO FL280 MOVING WEST...WALTER NEXT ADVISORY: WILL BE ISSUED BY 2003DEC08/0230Z NNNN