FVXX21 KWBC 012030 VOLCANIC ASH ADVISORY STATEMENT ISSUED 2030 UTC 01 APR 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-388 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE INFRARED AND MULTISPECTRAL IMAGERY THROUGH 1945 UTC. 6 HOUR UPPER WIND FORECAST FROM THE 1200 UTC AVIATION MODEL. GEOPHYSICAL INSTITUTE REPORT. . ERUPTION DETAILS: GAS AND ASH EMISSIONS . DETAILS OF ASH: VISIBLE SATELLITE IMAGERY THROUGH 01/1945 UTC INDICATES AN ASH PLUME TO THE WEST SOUTHWEST OF THE SUMMIT. THE ASH CLOUD EXTENDS APPROXIMATELY 18 KM (10 NMI) FROM THE SUMMIT TO A POINT 0131S7835W AND IS 5 KM (3 NMI) WIDE. THE ASH IS ESTIMATED AT FL230. . TRAJECTORY: ASH FROM THE SUMMIT LEVEL TO FL230 WILL MOVE TOWARDS WEST TO SOUTHWEST AT 10 TO 15 KNOTS. . OUTLOOK: SEE SIGMETS AND VAFTAD. . THE NEXT STATEMENT WILL BE ISSUED BY 02/0230 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. . CLARK . NNNN