Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 433 PM EDT Fri Apr 24 2015 Valid 00Z Sat Apr 25 2015 - 00Z Mon Apr 27 2015 ...There is a risk of severe weather for parts of the Southern Plains/Lower Mississippi Valley/Tennessee Valley/Southeast... ...Cool weather will continue across the Northeast/Great Lakes and spread across the Northwest US.... ...Rain will be widespread across many regions of the country focusing on the Middle Atlantic states/Ohio Valley/Mid Mississippi Valley and much of the Rockies with mountain snow... A very slow moving weather pattern will cover much of the country with a couple of storm systems bringing the possibility of severe weather, including severe thunderstorms, hail and a few tornadoes over the weekend into Monday. One storm system will move from the Central Plains eastward across the Ohio Valley and the Middle Atlantic states through Sunday. Severe thunderstorms are possible with this system from the Southern Plains and lower Mississippi Valley into Saturday and across the Tennessee and Lower Ohio valley into the Southeast into Sunday. On the northern edge of the storm, a chilly rain will fall across the Midwest and Upper Ohio valley into the Mid Atlantic states. Cool weather will continue to prevail across the Northeast and Midwest and once this first storm system moves across, cooler temperatures will follow across the low Mississippi Valley into Tennessee Valley and southern Atlantic states. Across the western half of the country a cold front will work its way slowly south and eastward and cooler air will follow in its wake. Rain and snow at higher elevations will cover much of the western US with some of the heavier totals in mountainous areas of northern California, Utah, Wyoming, Montana and Colorado where rainfall of .5 inches to greater than an inch will fall over the next few days. Snow will also fall across portions of the Sierra, The Wasatch Mountains in Utah, across northwestern Wyoming, western Montana and across parts of Idaho, as well as across the higher peaks of the Colorado Rockies. Kocin Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php