FVXX20 KWBC 190248 VOLCANIC ASH ADVISORY ISSUED: 2002NOV19/03000Z VAAC: WASHINGTON VOLCANO: REVENTADOR 1502-01 LOCATION: S0004W07739 AREA: ECUADOR SUMMIT ELEVATION: 11686 FT (3562M) ADVISORY NUMBER: 2002/55 INFORMATION SOURCE: GOES-8 IMAGERY. GFS MODEL WINDS FORECAST. ERUPTION DETAILS: EMISSION STARTED AT 18/1245Z. OBS ASH DATE/TIME: 18/2115Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. FL100/FL180 MOVING W AT 10-15 KNOTS FCST ASH CLOUD +6H: SEE SIGMETS REMARKS: EARLIER VISIBLE IMAGERY SHOWED AN ASH PLUME TO THE WSW OF THE SUMMIT. BUT SINCE LOCAL SUNSET THE DETECTION OF ASH HAS BECOME DIFFICULT ON MULTI-SPECTRAL IMAGERY DUE TO THE FAINT NATURE OF THE ASH PLUME. RECENTLY A BRIGHT HOTSPOT COULD BE SEEN ON GOES-8 IMAGERY WHICH IS AN INDICATION THAT ACTIVITY MAY BE CONTINUING TO THE WEST AND SOUTHWEST OF THE VOLCANO...GALLINA NEXT ADVISORY: WILL BE ISSUED BY 2002NOV19/0900Z. NNNN