FVXX20 KWBC 122052 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 2052 UTC 12 NOV 1999 BY THE WASHINGTON VAAC . GUAGUA PICHINCHA 99-084 ECUADOR 0.17S 78.60W . BACKGROUND: GUAGUA PICHINCHA ECUADOR (1502-02) SUMMIT HEIGHT 15695 FT (4784 M) . SOURCES OF INFORMATION: VISIBLE..INFRARED AND MULTISPECTRAL GOES-8 SATELLITE IMAGERY...GUAYAQUIL MWO...SURFACE AND PILOT REPORTS . ERUPTION DETAILS: GUAYAQUIL METEOROLOGICAL WATCH OFFICE REPORTS AN ERUPTION OF THE GUAGUA PICHINCHA VOLCANO TO FL250-280 AT 1909 UTC. . DETAILS OF ASH CLOUD: AN ASH PLUME IS SEEN EMANATING FROM THE VOLCANO. AT 2015 UTC THE ASH EXTENDS 10 NM (18 KM) TO THE WEST OF THE VOLCANO AND IS APPROXIMATELY 5 NM (9 KM) WIDE. REPORTS FROM VOLCANOLOGISTS ON SITE INDICATE THAT THE DENSITY OF ASH IS LESS THAN THAT OF THE LARGE ERUPTION LAST MONTH. . TRAJECTORY: ASH IS MOVING TOWARD THE WEST AT ABOUT 10 KNOTS AT FL280. . 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 13/0300 UTC. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . RUMINSKI . NNNN"Attached Graphic Map Depicting Ash"