FVXX20 KWBC 131523 VOLCANIC ASH ADVISORY ISSUED: 2004JAN13/1530Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2004/043 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. GUAYAQUIL MWO SIGMET. ERUPTION DETAILS: GAS AND ASH EMISSIONS. OBS ASH DATE/TIME: 13/1445Z. OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/250 MOVING TO E 10 KNOTS. FCST ASH CLOUD+6H: NOT AVBL FCST ASH CLOUD+12H: NOT AVBL FCST ASH CLOUD+18H: NOT AVBL REMARKS: ASH COULD NOT BE DETECTED IN SATELLITE IMAGERY DUE TO EXTENSIVE HIGH CLOUDS HOWEVER PILOT REPORTS INDICATE THAT ACTIVITY IS ONGOING THIS MORNING. THE MOST RECENT PIREP OBSERVED ASH TO FL250 AT 1416Z MOVING EAST. TURK NEXT ADVISORY: WILL BE ISSUED BY 2004JAN13/2130Z. NNNN