FVXX21 KWBC 101300 VOLCANIC ASH ADVISORY ISSUED 1300 UTC 10 SEP 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-1060 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE...INFRARED AND MULTISPECTRAL IMAGERY. WIND FORECAST FROM THE AVIATION MODEL. GEOPHYSICAL INSTITUTE IN QUITO. . ERUPTION DETAILS: STEAM AND POSSIBLE ASH EMISSIONS. . DETAILS OF ASH: NO ASH WAS DETECTED IN SATELLITE IMAGERY THROUGH 10/1215 UTC. THE GEOPHYSICAL INSTITUTE REPORTED NEAR SUMMIT ACTIVITY OF MOSTLY STEAM. . TRAJECTORY: ANY ASH FROM THE SUMMIT TO FL180 WOULD MOVE TOWARD THE WEST SOUTHWEST AT APPROXIMATELY 15 TO 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUED BY 10/1900 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. . BROWN . NNNN