Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 335 PM EDT Sun Apr 14 2019 Valid 00Z Mon Apr 15 2019 - 00Z Wed Apr 17 2019 ...The severe weather and heavy rainfall threat continues into the East tonight... ...Unsettled weather out West with snowfall accumulations possible in the mountains of northwest Wyoming and the Sierra Nevada... The spring storm responsible for an outbreak of severe storms from eastern Texas to the Southeast this weekend will continue moving east tonight, and off the Atlantic coast by Monday morning. The greatest threat tonight for severe weather will be across parts of the Mid-Atlantic states where the Storm Prediction Center has an enhanced risk in place. There is a slight risk south of this area along the cold front. Locally heavy rainfall may accompany these storms, with WPC highlighting a slight risk for excessive rainfall/flash flooding across parts of the Appalachians into upstate New York. The combination of warm temperatures, rain, and lingering snow cover across portions of New England may also lead to a threat for river flooding through Tuesday morning. Temperatures on the north side of this system should be cold enough to support light snow showers and accumulations across parts of lower Michigan and far northern Maine tonight. Out West, unsettled weather will continue through Monday as a cold front moves eastward towards the Plains tonight. Rain and higher elevation snows will accompany this system, especially across the northern Great Basin and Rockies with moderate to heavy snow accumulations possible in the higher elevations of western Wyoming. A second system approaches the coast on Monday, which should bring a renewed round of rain and mountain snows to California, Oregon, and the Great Basin for the second half of Monday through Tuesday. The best chance for accumulating snowfall will be in the Sierra Nevada where upwards of a foot may be possible in the highest elevations. Behind the cold front in the East, temperatures across the Ohio Valley and into the East should return to near or below normal by Monday. Meanwhile, across the Great Plains, daytime highs on Monday are forecast to be well into the 80s, which is 10 to 20 degrees above average. And out West, below average temperatures should persist through Tuesday as a series of cold fronts move through the region. Santorelli Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php