FVXX21 KWBC 092220 VOLCANIC ASH ADVISORY ISSUED 2220 UTC 09 JUN 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-677 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. . ERUPTION DETAILS: OCCASIONAL GAS AND ASH EMISSIONS. . DETAILS OF ASH: THE GEOPHYSICAL INSTITUTE REPORTS THAT THE VOLCANO HAS OCCASIONAL GAS AND ASH EMISSIONS TO AN ALTITUDE BETWEEN FL250 AND FL300. EXTENSIVE CLOUDINESS AROUND THE VOLCANO IS MAKING SATELLITE DETECTION OF ANY POSSIBLE ASH DIFFICULT. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST THAT IF THERE IS ANY ASH BETWEEN THE SUMMIT AND FL300 IT WOULD MOVE TOWARDS THE WEST AT ABOUT 15 KNOTS. . OUTLOOK: SEE SIGMETS AND VAFTAD. . THE NEXT MESSAGE WILL BE ISSUED BY 10/0430 UTC. . REAL TIME SATELLITE IMAGERY ALONG WITH THIS AND OTHER 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. . RUMINSKI . NNNN