FVXX21 KWBC 130700 VOLCANIC ASH ADVISORY STATEMENT ISSUED 0700 UTC 13 MAY 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-561 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 AVIATION MODEL. GEOPHYSICAL INSTITUTE REPORT. . ERUPTION DETAILS: NEARLY CONTINUOUS GAS AND OCCASIONAL ASH EMISSIONS. . DETAILS OF ASH: SATELLITE IMAGERY THROUGH 13/0615 UTC SHOWS EXTENSIVE LAYERED CLOUDS OVER THE AREA MAKING DETECTION OF ASH DIFFICULT. THE LAST GEOPHYSICAL INSTITUTE REPORT AT 12/2003 UTC ESTIMATED THE PLUME HEIGHT AT FL200. . TRAJECTORY: ANY ASH FROM THE SUMMIT TO FL200 WOULD MOVE TOWARD THE WEST-SOUTHWEST AT 15 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 13/1300 UTC. . REAL TIME SATELLITE IMAGERY ALONG WITH THIS AND OTHER VOLCANIC ASH ADVISORY STATEMENTS 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