FVXX21 KWBC 171930 VOLCANIC ASH ADVISORY STATEMENT ISSUED 1930 UTC 17 MAR 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-325 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. 6 HOUR WIND FORECAST FROM THE 17/1200 UTC AVIATION MODEL. . ERUPTION DETAILS: EMISSIONS OF GASES AND ASH. . DETAILS OF ASH: SATELLITE IMAGERY AT 17/1845 UTC SHOWS CLOUDS COVERING THE AREA AROUND THE VOLCANO MAKING ANY DETECTION OF ASH DIFFICULT. THE LAST VISIBLE IMAGE BEFORE CLOUDS MOVED IN SHOWED A NARROW PLUME OF ASH CONTINUING TO THE WEST. ASH WAS ESTIMATED AT FL200. . TRAJECTORY: ACCORDING TO THE FORECAST MODELS ASH FROM THE SUMMIT TO FL200 WILL MOVE TOWARDS THE WEST AT 20 TO 25 KTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 18/0130 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