FVXX21 KWBC 110730 VOLCANIC ASH ADVISORY STATEMENT ISSUED 0730 UTC 11 MAR 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-297 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY...AVIATION MODEL FORECAST DATA...GEOPHYSICAL INSTITUTE. . ERUPTION DETAILS: OCCASIONAL EMISSION OF GASES AND ASH. . DETAILS OF ASH: NO ASH CAN BE DETECTED IN THE 0645 UTC GOES-8 IMAGE DUE TO EXTENSIVE METEOROLOGICAL CLOUDINESS IN THE VICINITY OF THE VOLCANO. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST THAT IF THERE IS ANY ASH NEAR OR SLIGHTLY ABOVE THE SUMMIT IT WOULD MOVE TOWARD THE WEST AT ABOUT 10 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 11/1330 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