Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 432 PM EDT Wed May 02 2018 Valid 00Z Thu May 03 2018 - 00Z Sat May 05 2018 ...Severe thunderstorms likely and flash flooding possible for Plains/Midwest through Thursday... ...Critical fire weather conditions continue through Thursday for the Southern High Plains... ...Heavy snow continues for the Central Rockies through Thursday... ...Record warmth expected for the northern Mid-Atlantic... A slow-moving front located across the Midwest and into the Central Plains, as well as a dryline farther south across the southern Plains, will help lead to more rounds of rain and thunderstorms for those areas. The Storm Prediction Center has a moderate risk of severe thunderstorms through Wednesday night in portions of Oklahoma, Kansas, and Missouri, with some risk of severe weather throughout the Southern and Central Plains and the Middle Mississippi Valley. The threat for severe weather continues on Thursday, so check the Storm Prediction Center's website for more details. Heavy rain and flash flooding are also possible as some storms will be slow moving. A slight risk of excessive rainfall is in effect through Wednesday night for portions of the Central Plains and Middle Mississippi Valley today, and expected for portions of the Midwest tomorrow. Behind the dryline, critical fire weather conditions are forecast to continue through Thursday, as gusty winds combine with low relative humidity across the Southern High Plains. The cold front coming through on Thursday will help relative humidity rise and lessen the fire weather threat by Friday. Red Flag Warnings are also in effect through Wednesday evening in portions of the northern Mid-Atlantic. An upper-level low will continue moving eastward through the Southwest, leading to scattered showers and thunderstorms in the valleys, as well as mountain snow in much of the West into Thursday. Rainfall amounts are generally expected to be less than an inch. However, late season heavy snow is forecast to continue in higher elevations of the Central Rockies, with additional snow amounts up to 8 inches. Temperatures are expected to be much above average through the end of the workweek in the northern and eastern U.S. Highs in the upper 80s and lower 90s in the northern Mid-Atlantic could break records on Thursday and Friday. Overnight temperatures will also be warm; many record warm minimum temperatures are also expected to be broken across the Ohio Valley, Mid-Atlantic, and Northeast. Tate Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php