FVXX20 KWBC 191230 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 1230 UTC 19 FEB 1999 BY THE WASHINGTON VAAC . COLIMA 99-009 MEXICO 19.51N 103.62W . BACKGROUND: COLIMA MEXICO (1401-04) SUMMIT HEIGHT 13451 FT (4100 M) . SOURCES OF INFORMATION: GOES 8 INFRARED AND MULTISPECTRAL IMAGERY. SIGMET FROM MEXICO CITY METEOROLOGICAL WATCH OFFICE. . ERUPTION DETAILS: EXHALATION OCCURRED AT 18/1735 UTC. . DETAILS OF ASH CLOUD: NO ASH CAN BE SEEN IN SATELLITE IMAGERY THROUGH 1145 UTC. WE ARE ENDING THIS EVENT AND WILL BEGIN TO ISSUE A WATCH VAAS SINCE THE COLIMA VOLCANO OBSERVATORY REPORTS THAT THE VOLCANO REMAINS UNSTABLE WITH THE POTENTIAL TO PRODUCE AN ERUPTION CLOUD WITH LITTLE OR NO WARNING. . TRAJECTORY: NO ASH IS DETECTED IN SATELLITE IMAGERY. . 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 SIGMETS . THE NEXT WATCH VAAS WILL BE ISSUED AT 20/1600 UTC. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN