FVXX22 KWBC 211500 VOLCANIC ASH ADVISORY ISSUED 1500 UTC 21 SEP 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-1092 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE...INFRARED...AND MULTISPECTRAL IMAGERY. AVIATION MODEL WIND FORECAST. . ERUPTION DETAILS: ASH EMISSION AT ABOUT 20/1400 UTC. . DETAILS OF ASH CLOUD: NO ASH CAN BE DETECTED IN SATELLITE IMAGERY THROUGH 21/1415 UTC. BROKEN LOW LEVEL CLOUDS SURROUND THE SUMMIT. . TRAJECTORY: ANY ASH FROM THE SUMMIT TO FL250 WOULD MOVE TO THE WEST OR NORTHWEST AT 10 TO 15 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT ADVISORY WILL BE ISSUED BY 21/2200 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. . . NNNN