FVXX20 KWBC 050500 VOLCANIC ASH ADVISORY ISSUED: 2002MAR05/0500Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M). . ADVISORY NUMBER: 2002/118 . INFORMATION SOURCE: GOES-8 IMAGERY. GEOPHYSICAL OBSERVATORY REPORT. AVN MODEL WINDS FORECAST. . ERUPTION DETAILS: ASH OBSERVED AT 04/1610Z. . OBS ASH DATE/TIME: 05/0415Z . OBS ASH CLOUD: SFC/FL250 MOVING W 10 KNOTS. ASH NOT IDENTIFIABLE FROM SATELLITE DATA. . FCST ASH CLOUD+6H: SEE SIGMETS. . REMARKS: THE LAST REPORTED OBSERVATION OF ASH OVER THE VOLCANO WAS AT 1610Z. SATELLITE IMAGERY SHOWS CLOUDS IN THE VICINITY OF THE VOLCANO MAKING IT DIFFICULT TO DETECT ANY ASH. . NEXT ADVISORY: WILL BE ISSUED BY 2002MAR05/1100Z. . NNNN