Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 432 AM EDT Mon May 04 2020 Valid 12Z Mon May 04 2020 - 12Z Wed May 06 2020 ...Another low pressure system will bring stormy weather across the central Plains toward the East Coast during the next couple of days... ...More record heat returns to the Desert Southwest as much cooler temperatures overspread the East... The weather pattern across the U.S. will continue to promote an active storm track across the mid-section of the country toward the East Coast. A low pressure system over New England will be slow to depart the area. Rain is expected to linger across northern New England through today. Colder air behind the low will settle into much of the northern and northeastern U.S. into mid-week. The cold air is expected to change the rain over to wet snow or mixed precipitation across northern New England tonight before tapering off Tuesday morning. Meanwhile, a Pacific front pushing into the High Plains is interacting with a stationary front, producing clusters of showers and thunderstorms in the vicinity. Some of these storms could be strong to severe and could contain heavy rainfall. A swath of showers and thunderstorms is expected to spread eastward across the northern and central Plains today as another low pressure wave is forecast to intensify over the central Plains. It appears that the Mid-Mississippi Valley will see the highest chance of strong to severe thunderstorms later today, pushing quickly eastward into the southern Appalachians by Tuesday morning ahead of the low pressure wave. Rain will then overspread the Mid-Atlantic region on Tuesday as the low pressure wave passes to the south. In the mean time, scattered thunderstorms can be expected to stretch along a trailing cold front across the Southeast into the Deep South. By Wednesday morning, the low pressure system will begin to move off the East Coast but rain will linger over many locations along the East Coast into the Ohio Valley due to a trough of low pressure. The swath of rain across the northern Plains is forecast to push eastward into the upper Midwest Tuesday night. Some of the rain could change over to wintry precipitation Tuesday morning as it approaches the upper Great Lakes. Meanwhile, more record high temperatures are expected to return across the Desert Southwest as the upper level ridge is forecast to build, which will be in stark contrast with the much below normal temperatures over the Northeast. The Southeast will see the summer-like temperatures sticking around through Tuesday but cooler temperatures should arrive mid-week. Kong Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php