FVXX20 KWBC 180200 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 0200 UTC 18 NOV 1999 BY THE WASHINGTON VAAC . GUAGUA PICHINCHA 99-095 ECUADOR 0.17S 78.60W . BACKGROUND: GUAGUA PICHINCHA ECUADOR (1502-02) SUMMIT HEIGHT 15695 FT (4784 M) . SOURCES OF INFORMATION: GEOLOGICAL PERSONNEL IN QUITO...GOES-8 MULTISPECTRAL IMAGERY. UPPER AIR WIND REPORTS FROM THE INSTITUTO GEOFISICO IN QUITO. . ERUPTION DETAILS: THE INSTITUTO GEOFISICO REPORTED A MAJOR ERUPTION AROUND 1912 UTC. . DETAILS OF ASH CLOUD: GOES-8 MULTISPECTRAL IMAGERY THRU 0145 UTC SHOWS THAT THE ASH AT FL350 FROM THE EARLIER ERUPTION MOVED RAPIDLY SOUTWHESTWARD AND DISSIPATED. THERE IS NO CURRENT INDICATION OF ASH FROM THIS ERUPTION IN THE SATELLITE IMAGERY. . TRAJECTORY: ASH AT FL350 MOVED SOUTHWESTWARD AT 35 KNOTS AND DISSIPATED. . 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 AT 18/1700 UTC AS A WATCH STATEMENT. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . BROWN . NNNN