FVXX21 KWBC 252310 VOLCANIC ASH ADVISORY STATEMENT ISSUED 2310 UTC 25 MAR 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-359 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE...INFRARED AND MULTISPECTRAL IMAGERY...GUAYAQUIL MWO...GEOPHYSICAL INSTITUTE. . ERUPTION DETAILS: CONTINUOUS DEGASSING WITH OCCASIONAL SMALL ASH EMISSIONS. . DETAILS OF ASH: SATELLITE IMAGERY THROUGH 2245 UTC SHOWS NO SIGNS OF ASH. HOWEVER THE GEOPHYSICAL INSTITUTE HAS REPORTED ASH OVER THE VOLCANO AT 2238 UTC. EXTENSIVE CLOUDINESS IN THE REGION IS BEGINNING TO SHOW SIGNS OF DIMINISHING AND THIS COULD ALLOW FOR THE DETECTION OF THE NEW ASH THIS EVENING. THE ASH IS ESTIMATED TO AS HIGH AS FL200. . TRAJECTORY: SATELLITE IMAGERY CONFIRMS THE GEOPHYSICAL INSTITUTE REPORT OF ASH MOVING TO THE WEST-NORTHWEST AND CUURENTLY IT IS AT 10 TO 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 26/0500 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. . ORRISON . NNNN