FVXX20 KWBC 260536 VOLCANIC ASH ADVISORY ISSUED: 2002MAR26/0536Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S07826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M). . ADVISORY NUMBER: 2002/182 . INFORMATION SOURCE: GOES-8 IMAGERY. AVN MODEL WINDS FORECAST. GEOPHYSICAL INSTITUTE. GUAYAQUIL MWO SIGMET. . ERUPTION DETAILS: SPORADIC EMISSIONS OF GASES AND ASH SINCE 25/2305Z. . OBS ASH DATE/TIME: 26/0345Z. . OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/200 MOVING W 10-15 KNOTS. . FCST ASH CLOUD+6H: SEE SIGMETS. . REMARKS: THE GEOPHYSICAL INSTITUTE OBSERVED ASH OVER THE SUMMIT TO FL200 AT 26/0437Z. SATELLITE DATA HAS NOT BEEN AVAILABLE SINCE THE TIME OF THE ERUPTION DUE TO A SCHEDULED OUTAGE HOWEVER NO ASH HAD BEEN DETECTED IN THE SATELLITE IMAGERY THROUGH 26/0345Z....TURK . NEXT ADVISORY: WILL BE ISSUED BY 2002MAR26/1200Z . NNNN