FVXX21 KWBC 132230 CCA VOLCANIC ASH ADVISORY - CORRECTION ISSUED 2230 UTC 13 JUL 2000 BY THE WASHINGTON VAAC . CORRECTION OF NEXT MESSAGE TIME . TUNGURAHUA 00-818 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE..INFRARED AND MULTISPECTRAL IMAGERY. GEOPHYSICAL INSTITUTE REPORT. 12 HOUR WIND FORECAST FROM THE 13/1200 UTC AVIATION MODEL . ERUPTION DETAILS: GASES WITH OCCASIONAL ASH EMISSIONS. . DETAILS OF ASH: ASH IS NOT SEEN ON THE SATELLITE IMAGERY THROUGH 13/2215 UTC DUE TO DENSE CLOUDINESS OVER THE AREA OF THE SUMMIT. HOWEVER..AT 13/1845 UTC THE GEOPHYSICAL INSTITUTE REPORTED ASH OVER THE SUMMIT TO FL230. . TRAJECTORY: ASH FROM THE SUMMIT TO FL230 WILL MOVE TOWARDS THE WEST-SOUTHWEST AT 10-15 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUED BY 14/0430 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. . WALTER . NNNN