FVXX20 KWBC 201947 VOLCANIC ASH ADVISORY ISSUED: 2004FEB20/1758Z VAAC: WASHINGTON VOLCANO: COLIMA 1401-04 LOCATION: N1951W10362 AREA: MEXICO SUMMIT ELEVATION: 12631 FT (3850 M) ADVISORY NUMBER: 2004/12 INFORMATION SOURCE: MEXICO CITY MWO. GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. ERUPTION DETAILS: ASH EMISSIONS STARTING AROUND 1732Z. OBS ASH DATE/TIME: 20/1745Z OBS ASH CLOUD: SFC/FL200 N1926W10338 - N1925W10335 - N1924W10334 - N1922W10335 - N1923W10337 - N1924W10339 - N1926W10338 MOVING TO S 10-15 KNOTS. FCST ASH CLOUD+6H: NOT AVBL FCST ASH CLOUD+12H: NOT AVBL FCST ASH CLOUD+18H: NOT AVBL REMARKS: MEXICO CITY SIGMET AT 20/1728Z HAS ASH CLOUD EXTENDING 5 NM SSE BETWEEN SFC/FL200. ...BALDWIN NEXT ADVISORY: WILL BE ISSUED BY 2004FEB21/0000Z NNNN Attached Graphic Depicting Ash Only