FVXX20 KWBC 220800 VOLCANIC ASH ADVISORY ISSUED: 2002MAR22/0800Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S07826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M). . ADVISORY NUMBER: 2002/166 . INFORMATION SOURCE: GOES-8 IMAGERY. AVN MODEL WINDS FORECAST. GUAYAQUIL MWO SIGMET. . ERUPTION DETAILS: ASH CLOUD REPORTED OVER VOLCANO BY GEOPHYSICAL INSTITUTE AT 21/2025Z. . OBS ASH DATE/TIME: 22/0221Z. . OBS ASH CLOUD: WINDS SFC/FL200 MOVING NORTHWEST 5-10 KNOTS. ASH NOT IDENTIFIABLE FROM SATELLITE DATA. . FCST ASH CLOUD+6H: SEE SIGMETS. . REMARKS: THE GEOPHYSICAL INSTITUTE REPORTED AN ASH CLOUD BETWEEN FL165 AND FL200 AT 22/02221Z. ASH HAS NOT BEEN DETECTED IN SATELLITE IMAGERY DUE TO CLOUD COVER THROUGH 22/0715Z. THERE WAS A HOTSPOT NOTED FOR SEVERAL HOURS UP UNTIL 22/0315Z IN BREAKS IN THE CLOUD COVER BUT CLOUDS ARE NOW TO THICK. . NEXT ADVISORY: WILL BE ISSUED BY 2002MAR22/1400Z . NNNN