FVXX21 KWBC 060700 VOLCANIC ASH ADVISORY STATEMENT ISSUED 0700 UTC 06 JAN 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-023 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE INFRARED AND MULTISPECTRAL IMAGERY. 1800 UTC AVIATION MODEL WIND FORECAST. GUAYAQUIL METEOROLOGICAL WATCH OFFICE SIGMET AND UPPER AIR WIND MEASUREMENTS FROM THE GEOPHYSICAL INSTITUTE. . ERUPTION DETAILS: CONTINUOUS ASH AND STEAM EMISSIONS. . DETAILS OF ASH: ASH IS NOT DISCERNABLE IN SATELLITE IMAGERY THROUGH 0645 UTC ALTHOUGH EXTENSIVE METEOROLOGICAL CLOUDS ARE IN THE AREA. EARLIER ASH WAS ESTIMATED TO BE BETWEEN FL200 AND FL250 BASED ON INFORMATION FROM THE GUAYAQUIL METEOROLOGICAL WATCH OFFICE. . TRAJECTORY: BASED ON UPPER AIR WIND REPORTS FROM THE INSTITUTE AND CLOUD DRIFT AS SEEN FROM GOES-8 ANY ASH BETWEEN FL200 AND FL300 WOULD MOVE TOWARD THE NORTHWEST AT 10 TO 15 . 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/) . OUTLOOK: SEE SIGMETS AND VAFTAD. . THE NEXT STATEMENT WILL BE ISSUED BY 06/1300 UTC. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN