FVXX20 KWBC 091430 VOLCANIC ASH ADVISORY STATEMENT ISSUED 1430 UTC 09 APR 2000 BY THE WASHINGTON VAAC . GUAGUA PICHINCHA 00-119 ECUADOR 0011S 7836W . BACKGROUND: GUAGUA PICHINCHA ECUADOR (1502-02) SUMMIT HEIGHT 15695 FT (4784 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE...INFRARED AND MULTISPECTRAL IMAGERY...6 HOUR FORECAST FROM THE 09/0600 UTC AVN MODEL. . ERUPTION DETAILS: EXPLOSIVE ERUPTIONS AT 09/0504 UTC AND 09/0712 UTC. . DETAILS OF ASH CLOUD: SATELLITE IMAGERY SUGGESTED A POSSIBLE BRIEF EMISSION OF ASH AND/OR GASES OCCURRED AT APPROXIMATELY 1230 UTC. THE SUSPECTED PLUME MOVED TOWARDS THE SOUTH SOUTHEAST AND DISSIPATED WITHIN 5 KM (3 NMI) OF THE SUMMIT. THIS EMISSION WAS BELIEVED TO HAVE REACHED BETWEEN FL300 AND FL350 BASED ON MODEL WINDS DATA. THE GEOPHYSICAL INSTITUTE COULD NOT BE REACHED FOR CONFIRMATION. . NO ASH WAS DISCERNED FROM LAST NIGHTS EXPLOSIVE ERUPTIONS. . TRAJECTORY: ANY ASH AND/OR GASES BETWEEN FL300 AND FL350 WOULD MOVE TOWARDS THE SOUTH SOUTHEAST BETWEEN 15 AND 20 KNOTS. . OUTLOOK: SEE SIGMETS AND VAFTAD. . THE NEXT STATEMENT WILL BE ISSUED ABOUT 09/2030 UTC. . 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/) . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . TURK . NNNN