FVXX20 KWBC 061715 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 1715 UTC 06 JULY 1999 BY THE WASHINGTON VAAC . COLIMA 99-34 MEXICO 19.51N 103.62W . BACKGROUND: COLIMA MEXICO (1401-04) SUMMIT HEIGHT 13451 FT (4100 M) . SOURCES OF INFORMATION: MEXICO CITY METEOROLOGICAL WATCH OFFICE..GOES 8 VISIBLE..INFRARED..MULTISPECTRAL IMAGERY . ERUPTION DETAILS:SIGMET FROM MEXICO CITY REPORTS AN ERUPTION OF COLIMA AT 06/1633 UTC. ESTIMATED HEIGHT OF THE ASH FROM THE SURFACE TO FL220. . DETAILS OF ASH CLOUD: DENSE METEOROLOGICAL CLOUDS IN THE AREA PREVENT ANY DETECTION OF THE ASH FROM SATELLITE. . TRAJECTORY: ACCORDING TO MODEL DATA ASH UP TO FL220 WOULD MOVE TOWARDS THE WEST NORTHWEST AT 15 TO 20 KTS. . 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: THE NEXT MESSAGE WILL BE AT 06/2315 UTC. . . PLEASE REFER TO SIGMETS AND VAFTAD FOR CURRENT WARNINGS. . NNNN