Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 336 AM EDT Mon Apr 26 2021 Valid 12Z Mon Apr 26 2021 - 12Z Wed Apr 28 2021 ...Rain and snow across much of the West, winding down Tuesday... ...Widespread fire danger remains a concern for the southwestern quadrant of the U.S. through Monday... ...Temperatures will be 10 to 15 degrees above average over parts of the Central Plains; Temperatures will be 15 to 20 below average over the Great Basin/Southwest... An upper-level low will develop over the Western U. S. bringing temperatures 15 to 20 below average over the Great Basin/Southwest. The upper-level low will also produce rain and higher elevation snow across parts of the Pacific Northwest/California to the Northern Rockies/Great Basin/Southwest through Tuesday. The associated front will move into the Central/Southern Rockies produce snow and lower elevation rain over parts of the Southwest and the Central/Southern Rockies. The snow and lower elevation rain will continue over the Central/Southern Rockies through Wednesday morning. However, dry and windy conditions are persistent across the Southwest into the Central High Plains, Southern Rockies, and Southern High Plains ahead of the upper-level trough, leading to continued fire weather concerns. Widespread Red Flag Warnings are in effect for those areas, along with a Critical Risk of fire danger. Some light precipitation and cooler temperatures in portions of the Southwest should positively affect that region on Monday. Another day of fire danger is expected for eastern Arizona across New Mexico and into Central/Southern High Plains, where another Critical Risk is posted. Meanwhile, a wave of low pressure over the Northern/Central Plains will move eastward to the Upper Great Lakes by Wednesday. The system will produce rain and snow over parts of the Upper Mississippi Valley/Upper Great Lakes on Monday morning, changing over to all rain overnight Monday. Shower and thunderstorms will develop over parts of the Central Plains, Upper Mississippi Valley, and Upper Great Lakes on Tuesday morning. On Tuesday afternoon, showers and thunderstorms will develop over parts of the Southern Plains/Lower Mississippi Valley that will continue into Wednesday morning. Overnight Tuesday, showers and thunderstorms will develop over parts of the Central Plains and Middle Mississippi Valley. Furthermore, temperatures will be 10 to 15 degrees above average over parts of the Central Plains on Monday. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php