Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 356 PM EDT Sat Apr 24 2021 Valid 00Z Sun Apr 25 2021 - 00Z Tue Apr 27 2021 ...Thunderstorms that could be severe and cause flash flooding will continue through this evening and tonight for the Southeast... ...Rain and snow are likely across much of the West through Monday... ...Fire danger is expected to continue in the southwestern quadrant of the U.S. for the next few days... A low pressure and frontal system across the Southeast and moist inflow from the Gulf of Mexico will continue to cause thunderstorms over parts of the Southeast through this evening and tonight. An Enhanced Risk of severe weather (with tornadoes, wind, and hail all possible threats) and a Slight Risk of flash flooding are in place for the Florida Panhandle as well as southern Alabama and Georgia. By Sunday morning, most thunderstorms will have moved offshore as the front sweeps across the region and the surface low deepens over the Atlantic. That low moving northeastward as well as another frontal system moving eastward from the Great Lakes region should help create showers across the Mid-Atlantic tonight and the Northeast on Sunday. Most precipitation should be rain, but northern New England could see light amounts of snow by early Monday. In the West, upper-level troughing with upper-level energy pushing through, along with a series of fronts moving through the region, are expected to produce widespread precipitation expanding southeastward across the Intermountain West on Sunday. By Monday, light precipitation is possible into the Southwest as precipitation dies down farther north. In general, higher elevations of the Intermountain West should see snow, with lower elevations seeing rain. The Sierra Nevada can expect around a foot of snow, prompting Winter Storm Warnings and Winter Weather Advisories there, with 6 to 18 inches of snow also forecast for the Wind River Mountains/Tetons over the next couple of days. The upper trough and fronts coming into the West will also cause cooler than normal temperatures in that region, especially for maximum temperatures. Meanwhile, an upper ridge ahead of the trough will lead to warm temperatures across much of the central U.S., though cold temperatures are likely in the Northern Plains and Upper Midwest north of a sharp warm front. Precipitation is also expected north of that front, and a few inches of snow are possible in portions of the Dakotas and Minnesota on Sunday, with a round of northern tier snow and rain on Monday as well. The Southwest to Southern Plains will continue to see fire danger threats over the next few days, given dry conditions and gusty winds. Through this evening, a Critical Risk is outlooked by the Storm Prediction Center for portions of southern Nevada and Utah and northern Arizona, with broader Elevated Risks from the Desert Southwest to Texas. Red Flag Warnings and Wind Advisories are also in effect. On Sunday, a large Critical Risk is in place for the Four Corners states into parts of the Texas and Oklahoma Panhandles. Then by Monday, the cooling and moistening trend in the Southwest should help reduce the threat in that area, but the Southern High Plains could still see the potential for fire danger. Tate Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php