FVXX20 KWBC 190630 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 0630 UTC 19 FEB 1999 BY THE WASHINGTON VAAC . COLIMA 99-008 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. U.S. NATIONAL WEATHER SERVICE NUMERICAL MODELS. . ERUPTION DETAILS: EXHALATION OCCURRED AT 18/1735 UTC. . DETAILS OF ASH CLOUD: NO ASH CAN BE SEEN IN SATELLITE IMAGERY THROUGH 0545 UTC. HOWEVER A MEXICO CITY METEOROLOGICAL WATCH OFFICE SIGMET INDICATES THAT VOLCANIC ASH BETWEEN FL140 AND FL170 WAS OBSERVED AT 18/2300 UTC EXTENDING 15 NMI (28 KM) SOUTHEAST. THE OUTLOOK SECTION OF THE SIGMET CONTINUES TO FORECAST ASH THROUGH THE PRESENT TIME. . TRAJECTORY: ANY ASH FROM FL140 TO FL170 WILL MOVE TOWARDS THE EAST OR SOUTHEAST AT ABOUT 15 KNOTS. . 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 MESSAGE WILL BE ISSUED BY 19/1230 UTC. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN