FVXX20 KWBC 041430 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 1430 UTC 04 JAN 1999 BY THE WASHINGTON VAAC . GUAGUA PICHINCHA 99-004 ECUADOR 0.17S 78.6W . BACKGROUND: GUAGUA PICHINCHA (NEAR QUITO) (1502-02) SUMMIT HEIGHT 15696 FT (4784M) . SOURCES OF INFORMATION: GOES-8 VISIBLE INFRARED AND MULTISPECTRAL IMAGERY. MWO GUAYAQUIL AND INSTITUTO GEOFISICO IN ECUADOR. . ERUPTION DETAILS: 04/0531 ERUPTION WITH ASH AND WATER VAPOR PRODUCED. . DETAILS OF ASH CLOUD: DUE TO SIGNIFICANT CLOUD COVER IN THE AREA NO ERUPTION CLOUD IS DETECTABLE BY SATELLITE. THERE HAS ALSO BEEN NO FURTHER INFORMATION RECEIVED AND THE INSTITUTE REPORTS NO FURTHER ACTIVITY. . TRAJECTORY: N/A . 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/messages.html (all lower case except /VAAC/) . OUTLOOK: SEE LATEST SIGMETS AND VAFTAD. . THIS WILL BE THE LAST STATEMENT FOR THIS EVENT. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN