FVXX21 KWBC 242100 VOLCANIC ASH ADVISORY ISSUED 2100 UTC 24 AUG 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-0992 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE..INFRARED AND MULTISPECTRAL IMAGERY. 6 HOUR WIND FORECAST FROM THE 24/1200 UTC AVIATION MODEL. . ERUPTION DETAILS: GAS AND OCCASIONAL ASH EMISSIONS. . DETAILS OF ASH: ASH IS NOT SEEN IN THE SATELLITE IMAGERY THROUGH 24/2045 UTC. THE LAST OBSERVATION OF ASH WAS AT 23/2300 UTC..HEIGHT UNKNOWN. . TRAJECTORY: ANY ASH AT SUMMIT LEVEL WILL MOVE TOWARDS THE WEST AT 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT ADVISORY WILL BE ISSUED BY 25/0300 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. . WALTER . NNNN