FVXX21 KWBC 250030 VOLCANIC ASH ADVISORY ISSUED 0030 UTC 25 JUN 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-740 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 24/1800 UTC AVIATION MODEL. GEOPHYSICAL INSTITUTE. . ERUPTION DETAILS: NEARLY CONTINUOUS GAS AND OCCASIONAL ASH EMISSIONS. . DETAILS OF ASH: ASH IS NOT SEEN ON THE SATELLITE IMAGERY THROUGH 24/2245 UTC. HOWEVER AT 24/2333 UTC THE GEOPHYSICAL INSTITUTE REPORTED ASH OVER THE SUMMIT TO FL280. . TRAJECTORY: ASH FROM THE SUMMIT TO FL280 WILL MOVE TOWARDS THE WEST-SOUTHWEST AT 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUED BY 25/0630 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. . WALTER . NNNN