FVXX21 KWBC 080430 VOLCANIC ASH ADVISORY STATEMENT ISSUED 0430 UTC 08 MAY 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-539 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 WIND FORECAST FROM THE 08/0000 UTC AVIATION MODEL. . ERUPTION DETAILS: OCCASIONAL GAS AND ASH EMISSIONS. . DETAILS OF ASH: SATELLITE IMAGERY THROUGH 08/0345 UTC SHOWS NO CURRENT ASH PLUME. LAYERED CLOUDS SURROUND THE SUMMIT. THE PREVIOUS ASH PLUME CAN NOT BE SEEN IN IMAGERY. THIS DOES NOT NECESSARILY MEAN THAT IT HAS DISSIPATED. THIN PLUMES ARE DIFFICULT TO DISCERN FROM CLOUDS IN INFRARED AND MULTISPECTRAL IMAGERY. . TRAJECTORY: ANY ASH UP TO FL300 WOULD MOVE TOWARDS THE WEST-SOUTHWEST AT 15 TO 25 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 08/1030 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