FVXX20 KWBC 281630 VOLCANIC ASH ADVISORY ISSUED: 2002FEB28/1630Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M). . ADVISORY NUMBER: 2002/102 . INFORMATION SOURCE: GOES-8 IMAGERY. AVIATION MODEL WIND FORECAST. GEOPHYSICAL INSTITUTE . ERUPTION DETAILS: ASH OBSERVED AT 28/0938Z. . OBS ASH DATE/TIME: 28/1545Z . OBS ASH CLOUD: SFC/FL400 MOVING W 10 KNOTS. ASH NOT IDENTIFIABLE IN SATELLITE DATA. . FCST ASH CLOUD+6H: SEE SIGMETS. . REMARKS: EXTENSIVE CLOUDS COVER THE REGION AROUND THE VOLCANO MAKING IT DIFFICULT TO DETECT ANY ASH. THERE HAVE BEEN NO FURTHER REPORTS OF VOLCANIC ASH FROM THE GEOPHYSICAL INSTITUTE. . NEXT ADVISORY: NO FURTHER ADVISORIES . NNNN