FVXX21 KWBC 020730 VOLCANIC ASH ADVISORY STATEMENT ISSUED 0730 UTC 02 APR 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-390 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. WIND FORECAST FROM THE AVIATION MODEL. . ERUPTION DETAILS: GAS AND ASH EMISSIONS . DETAILS OF ASH: ASH CANNOT BE SEEN IN SATELLITE IMAGERY THROUGH 02/0645 UTC BECAUSE OF THE EXTENSIVE WEATHER CLOUDS OVER THE REGION. AT 01/1945 UTC ASH ESTIMATED AT FL230 COULD BE SEEN IN SATELLITE IMAGERY. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST THAT ANY ASH BETWEEN THE SUMMIT LEVEL AND FL230 WILL MOVE TOWARD THE WEST AT 10 TO 15 KNOTS. . OUTLOOK: SEE SIGMETS AND VAFTAD. . THE NEXT STATEMENT WILL BE ISSUED BY 02/1330 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. . NNNN