FVXX20 KWBC 180715 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 0715 UTC 18 JULY 1999 BY THE WASHINGTON VAAC . COLIMA 99-041 MEXICO 19.51N 103.62W . BACKGROUND: COLIMA MEXICO (1401-04) SUMMIT HEIGHT 13451 FT (4100 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE INFRARED AND MULTISPECTRAL IMAGERY THROUGH 18/0645 UTC. ERUPTION DETAILS: ERUPTION OCCURRED AT ABOUT 17/1742 UTC. . DETAILS OF ASH CLOUD: LINGERING CLOUDS CONTINUE TO BLANKET THE AREA IN AN AROUND THE VOLCANO MAKING DETECTION OF ANY 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 LATEST SIGMETS AND VAFTAD. . THE NEXT STATEMENT WILL BE ISSUED BY 18/1315 UTC. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN