Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 341 PM EDT Mon Oct 31 2016 Valid 00Z Tue Nov 01 2016 - 00Z Thu Nov 03 2016 ...Rain and higher elevation snows possible across much of the Northwest U.S.... ...Heavy rainfall possible on Wednesday from the central Plains to the Great Lakes... ...Well above normal temperatures expected for much of the Central to Eastern states... Weak upper level energy crossing into the Northwest U.S. will keep rain and higher elevation snow in the forecast on Tuesday mainly along the favorable terrain of the Pacific Northwest, Northern California, and the Intermountain west...with snowfall possible in the highest elevations. By Wednesday and Thursday, conditions should dry out across much of the West, but heavy rainfall may return to British Columbia and the higher terrain of northwest Washington on Wednesday as a stronger system approaches the coast. A cold front moving through the Central U.S. will be relatively dry until Wednesday when it begins to tap into Gulf of Mexico moisture. Showers and thunderstorms are expected to develop along the boundary from the southern Plains to the Great Lakes. Heavy rainfall may focus along the boundary as it becomes quasi-stationary Wednesday evening into Thursday across the Midwest. A widespread flash flood threat is not expected, but localized flooding may be possible as well as isolated severe thunderstorms. Ahead of the front moving through the central U.S., temperatures are forecast to be well above normal across much of the central and eastern states. Afternoon maximum temperatures could reach as high as 20 to 30 degrees above normal, particularly from the central Plains to the Ohio Valley. Santorelli Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php