FVXX21 KWBC 250612 VOLCANIC ASH ADVISORY STATEMENT ISSUED 0612 UTC 25 APR 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-484 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. UPPER AIR WIND FORECAST FROM THE AVIATION MODEL. INSTITUTO GEOFISICO IN QUITO. . ERUPTION DETAILS: CONTINUOUS GASES AND ASH EMISSIONS. . DETAILS OF ASH: WEATHER OVER THE REGION HAS LIMITED OBSERVATIONS FROM SATELLITE IMAGERY THROUGH 25/0545 UTC. A HOT SPOT WAS DETECTED IN MULTISPECTRAL SATELLITE DATA AT 0245 UTC. THE LAST INDICATION OF ASH CAME AT 24/1636 UTC WHEN THE INSTITUTO GEOFISICO REPORTED ASH TO FL230. . TRAJECTORY: ASH TO FL230 WOULD MOVE TOWARDS THE WEST-SOUTHWEST AT ABOUT 15 TO 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 25/1200 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