FVXX21 KWBC 300200 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 0200 UTC 30 OCTOBER 1999 BY THE WASHINGTON VAAC . TUNGURAHUA 99-047 ECUADOR 1.47S 78.44W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY NATIONAL WEATHER SERVICE NUMERICAL WEATHER MODEL DATA. . ERUPTION DETAILS: OCCASIONAL VENTING OF ASH AND STEAM. . DETAILS OF ASH: GOES-8 SATELLITE IMAGERY THROUGH 30/xx15 UTC SHOWS CONTINUED CLOUDINESS OVER THE AREA OF THE VOLCANO MAKING DETECTION OF ASH IMPOSSIBLE. HOWEVER..REPORTS FROM THE GEOPHYSICAL INSTITUTE PASSED ON BY THE GUAYAQUILL MWO INDICATE VOLCANIC ASH OVER THE VOLCANO TO FL210. . TRAJECTORY: NUMERICAL MODEL DATA SUGGEST ASH AT FL210 WOULD MOVE TOWARD THE SOUTHWEST AT 10 KT. . 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/) . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED AROUND 30/0800 UTC. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . WALTER/SAB/NOAA/NESDIS . NNNN