FVXX20 KWBC 081818 VOLCANIC ASH ADVISORY ISSUED: 2004JAN08/1830Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2004/024 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. GEOPHYSICAL INSTITUTE. GUAYAQUIL MWO SIGMET. ERUPTION DETAILS: MODERATE GAS AND ASH EMISSIONS. OBS ASH DATE/TIME: 08/1745Z. OBS ASH CLOUD: SFC/FL250 8 NM WIDE LINE BETWEEN S0128W07826 - S0146W07844. ASH IS MOVING TO SW 10-15 KNOTS. FCST ASH CLOUD+6H: NOT AVBL FCST ASH CLOUD+12H: NOT AVBL FCST ASH CLOUD+18H: NOT AVBL REMARKS: THROUGHOUT THE MORNING THE ASH PLUME REMAINED NEARLY STATIONARY IN VISIBLE IMAGERY TO THE SW OF THE SUMMIT. CURRENTLY THE ASH IS FAINT BUT STILL DISCERNABLE ON IMAGERY. A PILOT REPORTED ASH TO FL250. NEXT ADVISORY: WILL BE ISSUED BY 2004JAN09/0030Z. NNNN