Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 319 AM EDT Mon Mar 25 2019 Valid 12Z Mon Mar 25 2019 - 12Z Wed Mar 27 2019 ...Showers and thunderstorms for the Southeast U.S. and rain/snow returns to the West Coast... A low pressure system currently over the middle Mississippi River Valley will continue tracking eastward and produce showers and thunderstorms from the Gulf Coast to the Mid Atlantic on Monday. Some severe storms will be possible across parts of the Deep South on Monday ahead of the cold front, and the Storm Prediction Center has a slight risk across parts of Alabama and Georgia. Most locations affected should have under a half inch of rainfall through early Wednesday, except locally over an inch where organized thunderstorm activity develops. Across the western U.S., two Pacific cold fronts are forecast to reach the West Coast through the middle of the week, advecting a plume of enhanced moisture across northern California and southern Oregon. Heavy snow is likely for the northern Sierra Nevada and the Siskiyou Mountains, and moderate to heavy rain for the valley locations and near the coast. Lighter precipitation is expected across northern Oregon and Washington, and extending inland across the northern Rockies. Mainly dry conditions are expected for most of the central U.S. Temperatures are expected to be mild to warm across the southern tier of the nation on Monday with highs in the 70s and lower 80s from southern California to Florida. Cooler weather arrives by Tuesday behind a cold front across much of the eastern U.S. with highs below average. D. Hamrick Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php