FVXX21 KWBC 050730 VOLCANIC ASH ADVISORY STATEMENT ISSUED 0730 UTC 05 APR 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-402 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. APRIL 4 GEOPHYSICAL INSTITUTE DAILY REPORT. . ERUPTION DETAILS: OCCASIONAL GAS AND ASH EMISSIONS. . DETAILS OF ASH: NO ASH COULD BE SEEN IN SATELLITE IMAGERY THROUGH 05/0645 UTC. THE GEOPHYSICAL INSTITUTE REPORTED THAT ACTIVITY AT THE VOLCANO REMAINED AT A LOW LEVEL. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST THAT IF ANY ASH EXISTS BETWEEN THE SUMMIT LEVEL AND FL300 IT WOULD MOVE TOWARD THE WEST AT ABOUT 15 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 05/1330 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. . STREETT . NNNN