FVXX21 KWBC 070730 VOLCANIC ASH ADVISORY STATEMENT ISSUED 0730 UTC 07 APR 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-410 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. GEOPHYSICAL INSTITUTE REPORT. . ERUPTION DETAILS: OCCASIONAL GAS AND ASH EMISSIONS. . DETAILS OF ASH: NO ASH IS VISIBLE IN THE LATEST GOES-8 SATELLITE IMAGERY THROUGH 0645 UTC. A THUNDERSTORM IN THE VICINITY IS OBSCURING THE VOLCANO. . TRAJECTORY: ANY VOLCANIC ASH PRESENT UP TO FL200 WOULD MOVE WEST AT 15 TO 20 KTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 07/1330 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