FVXX21 KWBC 151030 VOLCANIC ASH ADVISORY ISSUED 1030 UTC 15 JUL 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-824 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. GEOPHYSICAL INSTITUTE REPORT. 12 HOUR WIND FORECAST FROM THE 15/0000 UTC AVIATION MODEL. . ERUPTION DETAILS: GASES WITH OCCASIONAL ASH EMISSIONS. . DETAILS OF ASH: SATELLITE IMAGERY THRU 15/1015 UTC SHOWS EXTENSIVE CLOUDINESS OVER THE VOLCANO MAKING IT DIFFICULT TO DETECT ANY ASH. ASH HAS NOT BEEN REPORTED OVER THE SUMMIT SINCE 14/0100 UTC. . TRAJECTORY: ASH FROM THE SUMMIT TO FL240 WILL MOVE TOWARDS THE WEST AT 15-20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUED BY 15/1630 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. . NNNN