FVXX20 KWBC 230015 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 0015 UTC 23 SEPTEMBER 1999 BY THE WASHINGTON VAAC . GUAGUA PICHINCHA 99-016 ECUADOR 0.17S 78.60W . BACKGROUND: GUAGUA PICHINCHA (1502-02) SUMMIT HEIGHT 15,695FT (4784 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. ERUPTION DETAILS: ERUPTION AT APPROXIMATELY 22/1510 UTC. . DETAILS OF ASH CLOUD: NO ADDITIONAL INFORMATION HAS BEEN RECEIVED CONCERNING THE 22/1510 UTC ERUPTION OF GUAGUA PICHINCHA. A POSSIBLE ASH CLOUD TRACKED FROM THIS ERUPTION DISSIPATED BY 22/1715 UTC. GOES 8 INFRARED AND MULTISPECTRAL IMAGERY REVEALED SCATTERED CONVECTION WITH NO EVIDENCE OF ASH. . TRAJECTORY: N/A . 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 www.ssd.noaa.gov/VAAC/washington.html (all lower case except /VAAC/) . OUTLOOK: SEE SIGMETS AND VAFTAD. . THIS WILL BE THE FINAL MESSAGE ISSUED ON THIS EVENT. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN