* WHAT...Flooding caused by excessive rainfall and snowmelt is possible. * WHERE...Coos, Curry, Josephine, Jackson, western and central Douglas, and western Siskiyou counties, including all small drainages, creeks, and streams, especially those where melting snow may contribute to high run off. * WHEN...Through Wednesday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Heavy rain is expected this morning into early this afternoon, and with high snow levels, snow melt from any residual snowpack in the hills and mountains may contribute to excessive run off, leading to rapid rises on area creeks and streams. - http://www.weather.gov/safety/flood