FVXX21 KWBC 261100 VOLCANIC ASH ADVISORY STATEMENT ISSUED 1100 UTC 26 MAY 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-615 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. 12 HOUR FORECAST FROM THE 00 UTC AVIATION MODEL. GEOPHYSICAL INSTITUTE . ERUPTION DETAILS: OCCASIONAL GAS AND ASH EMISSIONS. . DETAILS OF ASH: LOW AND MID LEVEL CLOUDS COVER THE AREA AROUND THE VOLCANO MAKING ANY DETECTION OF ASH DIFFICULT AT THIS TIME. THE LAST REPORTED ERUPTION OF THE VOLCANO WAS AT 25/2230 UTC BUT THE VOLCANO REMAINS UNSTABLE AND MAY ERUPT AT ANY TIME. . TRAJECTORY: ANY ASH FROM THE SUMMIT TO FL300 WILL MOVE WEST AT 20 TO 25 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 26/1700 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. . KARST . NNNN