Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 358 PM EDT Sun Jun 06 2021 Valid 00Z Mon Jun 07 2021 - 00Z Wed Jun 09 2021 ...Heatwave persists from the Upper Midwest to the East Coast... ...Additional heavy rain for portions of the Gulf Coast... An early season heatwave across the northern tier of the country will persist into the start of the week, with many locations reaching upper 80s to upper 90s/low 100s from the High Plains to the northern parts of the Ohio Valley. The Eastern Seaboard will also start to get toasty and humid as the Bermuda High strengthens offshore over the next few days. The Desert Southwest will be stifling, with daily maximums averaging 100 to 110s at the lower elevations. Although the most of the Southern Plains and the Deep South will not be as hot, thanks to extensive cloud cover, it will however have multiple rounds of rain. Periods of moderate to heavy showers across the central portions of the Gulf Coast and surrounding areas will have an increased risk for scattered to widespread flooding through at least Wednesday morning. Some locations may receive upwards of 3 inches in addition to what has already fallen this weekend. Heavy rain is also expected across the ArkLaTex region in connection with the slow moving upper low, and for the Cascades as a couple of Pacific disturbances pass through the region. Additionally, the Storm Prediction Center has identified most of the Dakotas and parts of western Minnesota has having a Slight Risk of severe thunderstorms for Monday as a defined surface low and front intercepts a warm and unstable airmass across this region. The severe weather threat is expected to continue of the Dakotas into Tuesday. Campbell Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php