FVXX21 KWBC 241800 VOLCANIC ASH ADVISORY STATEMENT ISSUED 1800 UTC 24 APR 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-482 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE ... INFRARED AND MULTISPECTRAL IMAGERY. 6 HOUR WIND FORECAST FROM THE 24/1200 UTC AVIATION MODEL. INSTITUTO GEOFISICO IN QUITO. . ERUPTION DETAILS: CONTINUOUS GASES AND ASH EMISSIONS. . DETAILS OF ASH: SATELLITE IMAGERY THROUGH 24/1715 UTC SHOWS NO VISIBLE ASH PLUME AT THIS TIME. MULTI-LAYERED CLOUDS OVER THE AREA OF THE VOLCANO ARE MAKING DETECTION OF ASH DIFFICULT. THE LAST REPORT OF ASH WAS AT 24/1636 UTC BY THE INSTITUTO GEOFISICO WITH ASH TO FL230. . TRAJECTORY: ASH TO FL230 WOULD MOVE TOWARDS THE WEST-SOUTHWEST AT ABOUT 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 25/0000 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. . NNNN