Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 420 PM EDT Sun May 24 2020 Valid 00Z Mon May 25 2020 - 00Z Wed May 27 2020 ...Scattered clusters of severe weather and heavy rain across the Plains will become more focused over the southern Plains on Memorial Day... ...Tropical moisture will continue to bring a good chance of heavy rain up the Florida Peninsula... ...Heat is forecast to intensify and expand across the southwestern U.S.... A slow-moving cold front with multiple low pressure waves will continue to help trigger clusters of strong to severe thunderstorms from the Plains eastward into the southern half of the Appalachians through this evening. As the front continues to advance down the Plains, the highest chance of thunderstorms and heavy rain will shift southward into the southern Plains on Memorial Day, where generally a couple inches of rain with locally higher amounts can be expected. Ahead of the cold front, warmer than average temperatures are expected to spread across the Great Lakes toward New England. High temperatures in interior New England could soar well up into the 80s by Tuesday afternoon. In contrast, high-elevation snows across parts of the northern and central Rockies will taper off this evening. The core of the cold air will continue to spread southeastward into the central/southern High Plains on Monday and into Texas on Tuesday. Meanwhile, heat is forecast to build across the West underneath an expanding upper-level ridge. Daily record high temperatures will be in jeopardy over interior California beginning on Memorial Day before the heat intensifies and expands into the Great Basin and the Desert Southwest on Tuesday. Farther east, fire danger remains elevated into tonight for much of New Mexico and eastern Arizona. Tropical moisture streaming up from the Caribbean Sea will continue to bring a good chance of heavy rain up the Florida Peninsula for the next couple of days. A few inches of rain is possible from the Keys up along the east coast of southern Florida where Flood Watches and Slight Risks of excessive rainfall are in effect. Kong Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php