FVXX21 KWBC 072300 . VOLCANIC ASH ADVISORY ISSUED 2300 UTC 07 NOVEMBER 1999 BY THE WASHINGTON VAAC . TUNGURAHUA 99-086 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...GUAYAQUIL METEOROLOGICAL WATCH OFFICE SIGMETS AND THE INSTITUTO GEOFISICO. . ERUPTION DETAILS: THE INSTITUTO GEOFISICO REPORTS A NEARLY CONTINUOUS EMISSION OF STEAM AND ASH NEAR THE SUMMIT AND STRONG SEISMIC ACTIVITY. . DETAILS OF ASH: THERE CONTINUES TO BE BROKEN METEOROLOGICAL CLOUD COVERAGE AROUND THE VOLCANO AND WE ARE UNABLE TO DETECT ANY ASH IN SATELLITE IMAGERY THROUGH 2215 UTC. . TRAJECTORY: UPPER AIR WIND DATA SUGGESTS ANY ASH BETWEEN FL200 AND FL300 WOULD MOVE TOWARDS THE EAST TO SOUTHEAST AT 10 TO 15 KNOTS. 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 08/0500 UTC. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN