FVXX21 KWBC 121730 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 1730 UTC 12 OCTOBER 1999 BY THE WASHINGTON VAAC . COLIMA 99-048 MEXICO 19.51N 103.62W . BACKGROUND: COLIMA MEXICO (1401-04) SUMMIT HEIGHT 13451 FT (4100 M) . SOURCES OF INFORMATION:GOES 8 INFRARED MULTISPECTRAL AND VISIBLE IMAGERY...MEXICO METEOROLOGICAL WATCH OFFICE REPORT. . ERUPTION DETAILS: THE MEXICO CITY METEOROLOGICAL WATCH OFFICE REPORTS AN ERUPTION OF THE COLIMA VOLCANO AT 12/1700 UTC TO FL200. . DETAILS OF ASH: NO ASH IS DISCERNABLE ON GOES 8 VISIBLE..INFRARED OR MULTI-SPECTRAL IMAGERY ALTHOUGH A HOT SPOT IS VISIBLE ON SHORTWAVE IMAGERY. . TRAJECTORY: UPPER AIR DATA INDICATES THAT ANY ASH AT FL200 WOULD MOVE WEST NORTHWEST AT 10KT. . 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 SIGMET. . THE NEXT MESSAGE WILL BE ISSUED BY 12/2330 UTC. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . . NNNN