FVXX21 KWBC 161930 VOLCANIC ASH ADVISORY STATEMENT ISSUED 1930 UTC 16 MAR 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-321 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 16/1200 UTC AVIATION MODEL. . ERUPTION DETAILS: OCCASIONAL EMISSIONS OF GASES AND ASH. . DETAILS OF ASH: SATELLITE VISIBLE IMAGERY THROUGH 16/1915 UTC SHOWS LOW AND MID LEVEL CLOUDS OVER THE AREA MAKING DETECTION OF ASH DIFFICULT. MULTISPECTRAL IMAGERY DOES NOT INDICATE ANY ASH OVER THE VOLCANO. TRAJECTORY: ANY ASH THAT MIGHT EXIST BETWEEN THE SUMMIT AND FL300 WOULD MOVE TO THE WEST AT 20 KTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 17/0130 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