FVXX20 KWBC 312228 VOLCANIC ASH ADVISORY ISSUED: 2004JUL31/2227Z VAAC: WASHINGTON VOLCANO: COLIMA 1401-04 LOCATION: N1931W10337 AREA: MEXICO SUMMIT ELEVATION: 12631 FT (3850 M) ADVISORY NUMBER: 2004/050 INFORMATION SOURCE: MEXICO CITY MWO. GOES-12 IMAGERY. ERUPTION DETAILS: EXHALATION OBSERVED BEFORE 1545Z. OBS ASH DATE/TIME: NIL OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. FCST ASH CLOUD +6H: NOT AVBL FCST ASH CLOUD +12H: NOT AVBL FCST ASH CLOUD +18H: NOT AVBL REMARKS: ASH IS NOT VISIBLE IN SATELLITE IMAGERY THROUGH SCATTERED CLOUDS AT 2202Z. ... NEXT ADVISORY: NO FURTHER ADVISORIES NNNN