FVXX21 KWBC 090815 . VOLCANIC ASH ADVISORY ISSUED 0815 UTC 09 NOVEMBER 1999 BY THE WASHINGTON VAAC . TUNGURAHUA 99-095 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...00 UTC AVIATION NUMERICAL WEATHER MODEL WIND DATA...REPORT OF THE INSTITUTO GEOFISICO . ERUPTION DETAILS: SATELLITE IMAGERY HAS SHOWN INTERMITTENT ASH EMISSIONS WITH THE MOST RECENT VISIBLE EMISSION OCCURRING AT ABOUT 09/0100 UTC. . DETAILS OF ASH: NO ASH CAN BE SEEN IN SATELLITE IMAGERY THROUGH 09/0745 UTC. THE ASH OBSERVED EARLIER AND ESTIMATED TO BE BETWEEN FL140 AND FL320 IS NOW TOO DIFFUSE TO OBSERVE IN IMAGERY. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST THAT ANY ASH BETWEEN FL220 AND FL320 WOULD MOVE TOWARD THE EAST AT ABOUT 20 KNOTS. ASH BETWEEN FL140 AND FL210 WOULD MOVE TOWARD THE SOUTH OR SOUTHEAST AT ABOUT 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 AND VAFTAD. . THE NEXT STATEMENT WILL BE ISSUED BY 09/1415 UTC. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN