FVXX21 KWBC 040929 VOLCANIC ASH ADVISORY ISSUED: 2004FEB04/0930Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2004/112 INFORMATION SOURCE: GOES 12 IMAGERY. GFS MODEL WINDS FORECAST. GEOPHYSICAL INSTITUTE ERUPTION DETAILS: EMISSION AT 03/2030Z OBS ASH DATE/TIME: 04/0845Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/260 MOVING TO W 15-20 KNOTS. FCST ASH CLOUD+6H: NOT AVBL FCST ASH CLOUD+12H: NOT AVBL FCST ASH CLOUD+18H: NOT AVBL REMARKS: THE GEOPHYSICAL INSTITUTE OBSERVED ASH TO FL260 AT 03/2030Z. EXTENSIVE CLOUDINESS HAS MADE IT DIFFICULT TO OBSERVE ASH FROM SATELLITE IMAGERY. ACCORDING TO UPPER AIR WINDS ANY ASH TO FL260 SHOULD MOVE TOWARDS THE W AT 15-20 KTS. NEXT ADVISORY: WILL BE ISSUED BY 2004FEB04/1530Z NNNN