FVXX21 KWBC 290100 VOLCANIC ASH ADVISORY ISSUED 0100 UTC 29 AUG 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-1009 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. WINDS FORECAST FROM THE AVIATION MODEL. GEOPHYSICAL INSTITUTE REPORT. . ERUPTION DETAILS: GAS AND OCCASIONAL ASH EMISSIONS. . DETAILS OF ASH: NO ASH WAS DETECTED IN SATELLITE IMAGERY THROUGH 29/0045 UTC. THE AREA AROUND THE SUMMIT IS OBSCURED BY MID LEVEL CLOUDS. THE GEOPHYSICAL INSTITUTE REPORTED 4 EXPLOSIONS TODAY WITH NO OBSERVED ASH BECAUSE OF THE CLOUDY CONDITIONS. ASH WAS LAST REPORTED OVER THE SUMMIT AT 28/1205 UTC. . TRAJECTORY: ASH AT SUMMIT LEVEL WILL MOVE TOWARDS THE WEST AT ABOUT 20 TO 25 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT ADVISORY WILL BE ISSUED BY 29/0700 UTC. . REAL TIME SATELLITE IMAGERY AND VOLCANIC ASH ADVISORIES OFTEN ACCOMPANIED BY A MAP DEPICTING ASH LOCATION ARE AVAILABLE AT INTERNET URL ADDRESS HTTP://WWW.SSD.NOAA.GOV/VAAC/WASHINGTON.HTML (ALL LOWER CASE EXCEPT /VAAC/) . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . CLARK . NNNN