FVXX21 KWBC 071930 VOLCANIC ASH ADVISORY STATEMENT ISSUED 1930 UTC 07 MAR 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-283 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...0600 UTC AVIATION MODEL SOUNDING DATA . ERUPTION DETAILS: OCCASIONAL EMISSION OF GASES AND ASH. . DETAILS OF ASH: LOW AND MID LEVEL CLOUDS COVER THE REGION AROUND THE VOLCANO MAKING ANY DETECTION OF ASH AND STEAM DIFFICULT. AN AIRCRAFT IN THE VICINITY OF THE VOLCANO AT 07/1255 UTC REPORTED VOLCANIC ASH AT FL240. . TRAJECTORY: ANY ASH AND STEAM THAT MAY EXIST FROM THE SUMMIT TO FL240 SHOULD MOVE TO THE WEST AT 20 TO 30 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 08/0130 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