FVXX21 KWBC 151500 VOLCANIC ASH ADVISORY STATEMENT ISSUED 1500 UTC 15 MAR 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-315 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. 12 HOUR WIND FORECAST FROM THE 15/0600 UTC AVIATION MODEL. . ERUPTION DETAILS: OCCASIONAL EMISSIONS OF GASES AND ASH. . DETAILS OF ASH: GOES-8 IMAGERY THROUGH 15/1415 UTC SHOWS EXTENSIVE LOW AND MID LEVEL CLOUDS OVER THE AREA MAKING DETECTION OF ASH IMPOSSIBLE. THE VOLCANO REMAINS UNSTABLE SO THAT FURTHER ERUPTIONS MAY OCCUR AT ANY TIME. . TRAJECTORY: ASH UP TO FL200 WOULD MOVE TOWARDS THE WEST AT 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 15/2100 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