Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 310 PM EST Fri Nov 27 2015 Valid 00Z Sat Nov 28 2015 - 00Z Mon Nov 30 2015 ...Heavy rain expected to continue from the southern plains to portions of the Mississippi valley... ...Freezing will continue into Saturday for portions of the southern and central plains... An arctic air mass north of a cold front remains entrenched across much of the central U.S. Moisture streaming northward from the Gulf of Mexico and overrunning the front is resulting in widespread precipitation from portions of the southern and central plains into the Ohio valley. Due to warm air overrunning the cold air north of the front, freezing rain is falling over a wide area, with sleet or snow mixed in at times on the northern end of the precipitation. This setup will change little through Saturday and Sunday as the arctic front continues to slowly move southward before becoming stationary in northern Mexico, while an upper-level low moves slowly across the Rockies. Thus, expect rain and freezing rain to continue over many of the same areas into Sunday for some areas. Additional freezing rain accumulations of greater than a tenth of an inch will be common, with some areas receiving another quarter inch. Additionally, heavy rainfall amounts of 2 to 5 inches will be possible across portions of the southern plains and lower/middle Mississippi valley. Flooding or flash flooding will be possible in some areas. Farther northeast, rain will continue into Saturday across the Ohio valley along the front. The northern portion of the same frontal boundary will move across the Northeast this evening, bringing rain showers to that area. Scattered rain showers will move into the Mid-Atlantic region on Saturday. Scattered snow showers will persist across much of the West through the weekend as the upper-level low slowly moves overhead. The mountains of Colorado and New Mexico will see more widespread snow through tonight. An additional 4 to 8 inches of snow, with locally higher amounts, can be expected here. Ryan Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php