FVXX20 KWBC 221240 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 1240 UTC 22 JAN 1999 BY THE WASHINGTON VAAC . SOUFRIERE HILLS 99-005 ECUADOR 0.178S 78.6W . BACKGROUND: GUAGUA PICHINCHA (NEAR QUITO) (1502-02) SUMMIT HEIGHT 15696 FT (4784M) . SOURCES OF INFORMATION: SIGMET FROM GUAYAQUIL ECUADOR. . ERUPTION DETAILS: ERUPTION OCCURRED APPROXIMATELY 21/2252 UTC AS REPORTED BY SIGMET. . DETAILS OF ASH CLOUD: ASH WAS REPORTED TO FL180. ERUPTION OCCURRED OVER 12 HOURS AGO AND NO REMNANTS OF THE ASH CLOUD ARE CURRENTLY VISIBLE IN GOES-8 IMAGERY. TRAJECTORY: ANY ASH AROUND FL180 WOULD MOVE TOWARD THE WEST AT 10-20KT. . 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 ONLY STATEMENT ON THIS EVENT. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN