FVXX21 KWBC 260340 VOLCANIC ASH ADVISORY STATEMENT ISSUED 0340 UTC 26 MAR 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-360 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY...GUAYAQUIL MWO...GEOPHYSICAL INSTITUTE. . ERUPTION DETAILS: CONTINUOUS DEGASSING WITH OCCASIONAL SMALL ASH EMISSIONS. . DETAILS OF ASH: SATELLITE IMAGERY THROUGH 0245 UTC SHOWS NO SIGNS OF ASH. HOWEVER THE GEOPHYSICAL INSTITUTE HAS REPORTED ASH OVER THE VOLCANO AT 0237 UTC. THERE CONTINUES TO BE A RATHER EXTENSIVE AMOUNT OF CLOUDINESS IN THE REGION WHICH IS COMPLICATING THE DETECTION OF ASH. SO FAR THIS EVENING THERE HAS NOT BEEN ANY ASH EVIDENT IN SATELLITE IMAGERY. THE ASH IS ESTIMATED TO AS HIGH AS FL200. . TRAJECTORY: ANY ASH FROM THE SUMMIT TO FL200 SHOULD MOVE MAINLY TO THE NORTHWEST AT 10 TO 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 26/0930 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