FVXX20 KWBC 190430 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 0430 UTC 19 OCTOBER 1999 BY THE WASHINGTON VAAC . GUAGUA PICHINCHA 99-053 ECUADOR 0.17S 78.60W . BACKGROUND: GUAGUA PICHINCHA ECUADOR (1502-02) SUMMIT HEIGHT 15,695 FT (4784 M) . SOURCES OF INFORMATION: GEOPHYSICAL INSTITUTE IN QUITO...INFRARED AND MULTISPECTRAL GOES-8 SATELLITE IMAGERY. . ERUPTION DETAILS: REPORTED SEISMIC EVENT OBSERVED AT 19/0325 UTC. . DETAILS OF ASH CLOUD: THE GEOPHYSICAL INSTITUTE IN QUITO REPORTS ANOTHER ERUPTION OF GUAGUA PICHINCHA BASED ON SEISMIC ACTIVITY WITH NO INDICATION OF HEIGHT OF ASH. CURRENT SATELLITE IMAGERY THROUGH 19/0345 UTC SHOWS THE AREA SHROUDED IN CLOUDS THUS MAKING DETECTION OF ASH IMPOSSIBLE. . 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 . THE NEXT MESSAGE WILL BE ISSUED AROUND 19/1030 UTC. . WALTER/SAB/NOAA/NESDIS . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN