FVXX21 KWBC 230515 VOLCANIC ASH ADVISORY STATEMENT ISSUED 0515 UTC 23 MAR 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-347 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: UPPER WINDS FORECAST FROM THE 22/1800 UTC AVIATION MODEL...GEOPHYSICAL INSTITUTE REPORT...GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. . ERUPTION DETAILS: SMALL EXPLOSIONS REPORTED. . DETAILS OF ASH: SATELLITE IMAGERY THROUGH 0345 UTC SHOWED CLOUDS OVER THE SUMMIT AND THE IMMEDIATE VICINITY WITH NO INDICATION OF ASH. ASH WAS DETECTED AS RECENTLY AS 22/2045 UTC BELOW FL240. . TRAJECTORY: ANY ASH THAT MAY EXIST BETWEEN THE SUMMIT AND FL200 WOULD MOVE TOWARDS THE NORTHWEST AT 15 KNOTS WHILE ASH BETWEEN FL200 AND FL240 WOULD MOVE TOWARDS THE WEST SOUTHWEST AT 10 TO 15 KNOTS. . OUTLOOK: SEE SIGMETS AND VAFTAD. . THE NEXT STATEMENT WILL BE ISSUED BY 23/1100 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. . TURK . NNNN