FVXX21 KWBC 020940...CORR VOLCANIC ASH ADVISORY ISSUED 0930 UTC 02 SEP 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-1027 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8...INFRARED...AND MULTISPECTRAL IMAGERY. WIND FORECAST FROM THE AVIATION MODEL. THE GEOPHYSICAL INSTITUTE IN QUITO. . ERUPTION DETAILS: CONTINUOUS GAS AND OCCASIONAL ASH EMISSIONS. . DETAILS OF ASH: GOES-8 IMAGERY THROUGH 0915 UTC SHOWS NO ASH ALTHOUGH THERE ARE EXTENSIVE CLOUDS OVER THE VOLCANO MAKING ANY DETECTION OF ASH DIFFICULT. THE GEOPHYSICAL INSTITUTE REPORTED 5 MODERATE EXPLOSIONS THIS PAST DAY WITH ASH MOSTLY AT SUMMIT LEVEL ALTHOUGH ONE EXPLOSION PRODUCED ASH BRIEFLY TO FL300. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH AT OR NEAR THE SUMMIT TO MOVE WEST SOUTHWEST AT 15 TO 20 KTS. . OUTLOOK: SEE SIGMETS. . THE NEXT ADVISORY WILL BE ISSUED BY 02/1530 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