FVXX21 KWBC 120320 VOLCANIC ASH ADVISORY STATEMENT ISSUED 0320 UTC 12 MAR 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-301 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. 12/0000 UTC FORECAST UPPER WINDS FROM THE AVIATION MODEL. . ERUPTION DETAILS: OCCASIONAL EMISSIONS OF GASES AND ASH. . DETAILS OF ASH: GOES-8 IMAGERY THROUGH 12/0245UTC SHOWS LOW AND MID LEVEL CLOUDS OVER TUNGURAHUA MAKING ANY DETECTION OF ASH DIFFICULT. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH EMITTED UP TO FL200 WOULD MOVE WEST AT 10 TO 15 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 12/0930 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