Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 405 AM EDT Sun May 10 2020 Valid 12Z Sun May 10 2020 - 12Z Tue May 12 2020 ...Mother's Day forecast features chilly temperatures for eastern & central regions, summer-like conditions in the West, showers & storms possible in the Southwest, Great Lakes, & Florida... ...Great Lakes system to reach the Northeast on Monday, more showers & thunderstorms to develop over the Southern & Central Plains... ...Cooler & wetter conditions return to the West Coast Monday & Tuesday, eastern regions to remain cooler than normal through Tuesday... The nation's Mother's Day forecast spotlights the continuation of April to even March-like temperatures from the front range of the Great Plains to the East Coast. Portions of the Central Plains, Northeast, Mid-Atlantic, and Ohio/Tennessee Valleys are under Freeze Warnings or Frost Advisories this morning with some record breaking lows also possible. Meanwhile, the western third of the CONUS stays under a more summer-like regime for one more day with the potential for some record breaking high temps. Precipitation-wise, a storm system tracking through the Great Lakes today will spark showers and thunderstorms across the region with a chance for some severe weather. Scattered showers and thunderstorms are likely in parts of the Southwest and southern High Plains this afternoon and evening. Florida can also expect showers and storms as a wave of low pressure tracks along a stalled frontal boundary stretching from the Gulf of Mexico to the northern Bahamas. Rainfall could be heavy at times and storms could be severe across South Florida. The aforementioned Great Lakes system takes aim at the Northeast on Monday where it will induce more showers across the region. Some of the highest elevations of the central and northern Appalachians could pick up some light snow accumulations Sunday night into Monday. Plus, the is also the potential for severe weather in southern New England where a Marginal risk has been issued by the Storm Prediction Center. Speaking of severe weather, another round of severe storms are possible in the southern High Plains on Monday with hit-or-miss showers and storms possible throughout the Intermountain West. The stretch of sizzling temperatures over the western third of the U.S. will come to an end starting Monday as a Pacific storm system approaches California. The storm system will introduce cooler air to the West Coast on Monday and push farther inland into the Great Basin by Tuesday. The Pacific Northwest should also receive beneficial rainfall from this storm system as it advects moisture overhead the first half of the week. Despite the cooler regime beginning to take shape out West, eastern and central regions can not shake the cooler than normal temperatures just yet with more record breaking lows possible Tuesday morning in the Great Lakes, Ohio Valley, and Mid-Atlantic. Mullinax Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php