FVXX20 KWBC 172030 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 2030 UTC 17 NOV 1999 BY THE WASHINGTON VAAC . GUAGUA PICHINCHA 99-094 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 VISIBLE AND 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 VISIBLE SATELLITE IMAGERY AT 1945 UTC SHOWS A DETACHED AREA OF ASH 15KM (8NMI) WIDE EXTENDING FROM 0.3S 78.7W TO 0.4S 79.0W. THE ASH ESTIMATED TO FL350 IS MOVING TOWARD THE SOUTHWEST AT 35 KNOTS. . TRAJECTORY: ASH AT FL350 IS MOVING TOWARD THE SOUTHWEST AT 35 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 AT 18/0230 UTC. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . BROWN . NNNN"Attached Graphic Map Depicting Ash"