FVXX20 KWBC 020948 VOLCANIC ASH ADVISORY ISSUED: 2003OCT02/1000Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/312 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. GUAYAQUIL MWO SIGMET. GEOPHYSICAL INSTITUTE. ERUPTION DETAILS: SERIES OF EMISSIONS STARTING AT 21/2345Z OBS ASH DATE/TIME: 02/0915Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/260 MOVING NW 10 KNOTS. FCST ASH CLOUD+6H: SEE SIGMETS AND VAFTAD. REMARKS: IT IS DIFFICULT TO DETECT ANY ASH IN MULTISPECTRAL IMAGERY DUE TO DENSE CLOUDS IN THE VICINITY OF THE VOLCANO. ANY ASH SHOULD MOVE TOWARDS THE NW AT 10 KNOTS. THERE IS AN OCCASIONAL HOT SPOT IN SHORTWAVE IMAGERY. NEXT ADVISORY: WILL BE ISSUED BY 2003OCT02/1600Z. NNNN