FVXX21 KWBC 201400 VOLCANIC ASH ADVISORY STATEMENT ISSUED 1400 UTC 20 MAR 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-336 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE...INFRARED AND MULTISPECTRAL IMAGERY. UPPER WIND FORECAST FROM THE AVN MODEL. GEOPHYSICAL INSTITUTE REPORT. . ERUPTION DETAILS: NEARLY CONTINUOUS VENTING OF GASES WITH OCCASIONAL ASH EMISSIONS. . DETAILS OF ASH: EXTENSIVE CLOUDINESS CONTINUES OVER THE REGION HINDERING THE DETECTION OF ASH. THERE HAVE BEEN NO RECENT REPORTS OF STRONG ASH EMISSIONS. . TRAJECTORY: ANY ASH TO FL250 WOULD MOVE TO THE WEST AROUND 15 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 20/2000 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. . TURK . NNNN