FVXX20 KWBC 312022 VOLCANIC ASH ADVISORY ISSUED: 2004JUL31/2021Z VAAC: WASHINGTON VOLCANO: COLIMA 1401-04 LOCATION: N1931W10337 AREA: MEXICO SUMMIT ELEVATION: 12631 FT (3850 M) ADVISORY NUMBER: 2004/049 INFORMATION SOURCE: MEXICO CITY MWO. GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. ERUPTION DETAILS: COLIMA TOWER OBSERVED AN EXHALATION WITH ASH. OBS ASH DATE/TIME: 31/2002Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL240 MOVING TO E 10 KNOTS. FCST ASH CLOUD +6H: NOT AVBL FCST ASH CLOUD +12H: NOT AVBL FCST ASH CLOUD +18H: NOT AVBL REMARKS: AT ABOUT 1545Z ASH WAS BRIEFLY OBSERVED SPREADING FROM THE VOLCANO TOWARD THE EAST BEFORE WEATHER CLOUDS COVERED THE AREA. THE ASH WAS ORIGINALLY REPORTED TO BE UP TO FL350 BUT IS NOW BELIEVED TO HAVE PROBABLY BEEN MUCH LOWER PERHAPS FL240. THERE IS LITTLE CURRENT SEISMICITY. NO ASH IS CURRENTLY OBSERVED THROUGH THE BREAKS IN THE CLOUDS SO ANY REMAINING ASH MAY BE DISSIPATING. NO VAFTAD HAS BEEN ISSUED. ... NEXT ADVISORY: WILL BE ISSUED BY 2004AUG01/0215Z NNNN