FVXX21 KWBC 041330 VOLCANIC ASH ADVISORY STATEMENT ISSUED 1330 UTC 04 JUN 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-653 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE AND INFRARED AND MULTISPECTRAL IMAGERY. WIND FORECAST FROM THE AVIATION MODEL. . ERUPTION DETAILS: OCCASIONAL GAS AND ASH EMISSIONS. . DETAILS OF ASH: SATELLITE IMAGERY THROUGH 04/1245 UTC SHOWS LOW AND MID LEVEL CLOUDS OVER THE VOLCANO MAKING IT DIFFICULT TO DETECT ASH AND STEAM. . TRAJECTORY: ANY ASH THAT MIGHT EXIST BETWEEN THE SUMMIT AND FL190 ARE FORECAST TO MOVE TOWARDS THE WEST SOUTHWEST AROUND 15 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 04/1930 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