Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 300 AM EST Wed Feb 21 2018 Valid 12Z Wed Feb 21 2018 - 12Z Fri Feb 23 2018 ...Cold temperatures across the West and warm across the East with a continuing active wet pattern across the central U.S... Excessive rain and areal flooding will continue from portions of the Southern Plains to the Great Lakes Region as warm Gulf moisture lifts northward along a slow moving frontal boundary. Cold air behind the front will allow for snow,or possible a wintry mix/ freezing rain. Numerous Winter Weather Advisories are in effect from central Texas to Illinois. Minor flooding is being observed across western portions of the Tennessee and Mid-Mississippi Valleys. Several locations across Lower Great Lakes/western Ohio Valley already have minor to moderate flooding, any additional rainfall will likely exacerbate the situation. Temperatures across much of the Eastern Seaboard will be above-to-well above normal for late February. Widespread highs in the 70s with some lower 80s are expected, and this has the potential to set record highs. These late Spring-like temperatures will be short-lived. The strong front over the central U.S. will finally cross the Central/Northern Appalachians and cold air will spill into the Northeast and Mid-Atlantic regions by the end of the week. Upper-level energy will move southward though the Pacific Northwest will spread snow spread from the coast inland and south to northern California. Much of the West will have temperatures warmer than seasonal average Campbell Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php