FVXX21 KWBC 241200 VOLCANIC ASH ADVISORY STATEMENT ISSUED 1200 UTC 24 APR 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-481 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. 6 HOUR WIND FORECAST FROM THE 24/0600 UTC AVIATION MODEL. . ERUPTION DETAILS: CONTINUOUS GASES AND ASH EMISSIONS. . DETAILS OF ASH: SATELLITE IMAGERY THROUGH 24/1115 UTC SHOWS MULTI-LAYERED CLOUDS OVER THE AREA OF THE VOLCANO MAKING DETECTION OF ASH DIFFICULT. A POSSIBLE PLUME WAS SPOTTED EARLIER THIS MORNING MOVING ALMOST DUE WEST. THIS PLUME COULD NOT BE DETECTED AN HOUR LATER DUE TO CLOUDINESS. THE LAST REPORT OF ASH WAS AT 23/2256 UTC WITH ASH TO FL260. . TRAJECTORY: ASH TO FL260 WOULD MOVE TOWARDS THE WEST-SOUTHWEST AT 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 24/1800 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