FVXX21 KWBC 070100 VOLCANIC ASH ADVISORY ISSUED 0100 UTC 07 SEP 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-1046 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. 6 HOUR WIND FORECAST FROM THE 06/1800 UTC AVIATION MODEL. GOPHYSICAL INSTITUTE IN QUITO. . ERUPTION DETAILS: OCCASIONAL ASH EMISSIONS. . DETAILS OF ASH: ASH IS NOT SEEN IN THE SATELLITE IMAGERY THROUGH 07/0045 UTC. HOWEVER..AT 06/1730 UTC THE GEOPHYSICAL INSTITUTE REPORTED VOLCANIC ASH OVER THE VOLCANO TO FL230. . TRAJECTORY: ASH FROM THE SUMMIT TO FL230 WILL MOVE TO THE SOUTHWEST AT 5 TO 10 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUED BY 07/0700 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. . WALTER . NNNN