Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 358 PM EDT Tue Apr 11 2017 Valid 00Z Wed Apr 12 2017 - 00Z Fri Apr 14 2017 ...Heavy snow possible over parts of the Cascades and Sierras... ...Heavy rain possible over parts of the Pacific Northwest... ...Heavy rain possible over parts of Southern High Plains... A front extending from the Northeast to the Southern Plains that will move off the Northeast/Mid-Atlantic Coast by Thursday. The storm will produce showers and thunderstorms from the Northeast to the Southern Plains/Western Gulf Coast that will move off the coast overnight Wednesday. A second front extending from the Northern Plains to parts of the Great Basin will move eastward to the Middle Mississippi Valley to the Central High Plains by Thursday. Elsewhere across the eastern U.S., mostly sunny and warm conditions are expected ahead of the approaching cold front on Tuesday. Scattered showers and isolated thunderstorms are expected to arrive by the middle of the week. Some high temperature records, including record high minimums, may be met or exceeded across parts of the Northeast Tuesday. Shower and thunderstorm chances will eventually increase across the Southern and central U.S. during midweek ahead of another developing system. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php