FVXX20 KWBC 290240 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 0240 UTC 29 NOV 1999 BY THE WASHINGTON VAAC . GUAGUA PICHINCHA 99-124 ECUADOR 0.17S 78.60W . BACKGROUND: GUAGUA PICHINCHA ECUADOR (1502-02) SUMMIT HEIGHT 15695 FT (4784 M) . SOURCES OF INFORMATION: DAILY REPORT FROM THE GEOFISICO INSTITUTO IN ECUADOR...GOES-8 INFRARED AND MULTISPECTRAL IMAGERY... . ERUPTION DETAILS: LAST ERUPTION OCCURRED AT 28/0215 UTC. . DETAILS OF ASH CLOUD: NO ASH IS DETECTED IN SATELLITE IMAGERY THROUGH 29/0145 UTC. IN ADDITION THERE HAVE BEEN NO SURFACE REPORTS OF ANY ASH OR RECENT ERUPTIONS AT THE GUAGUA PICHINCHA VOLCANO. THEREFORE THIS WILL BE THE LAST STATEMENT CONCERNING THE EVENT FROM LAST EVENING. . THE GEOFISCO INSTITUTO THOUGH CONTINUES TO REPORT THAT THE VOLCANO IS UNSTABLE AND THAT AN ERUPTION COULD OCCUR AT ANY TIME. THEREFORE A WATCH STATUS WILL BE LEFT IN PLACE. . 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 http://www.ssd.noaa.gov/VAAC/washington.html (all lower case except /VAAC/) . OUTLOOK: SEE SIGMETS AND VAFTAD. . THE NEXT STATEMENT WILL BE A WATCH VAAS AND WILL BE ISSUED BY 29/1700 UTC. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . ORRISON . NNNN