Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 231 PM EDT Tue Jul 05 2016 Valid 00Z Wed Jul 06 2016 - 00Z Fri Jul 08 2016 ...Heavy rains and severe thunderstorms are possible across the Upper Mississippi Valley and Midwest late Tuesday and then again on Thursday into early Friday... ...Showers and scattered thunderstorms will also be common across the Ohio Valley into the Tennessee Valley... ...Very warm to hot and humid conditions will be widespread from the Plains states to the East Coast over the next few days... While much of the central and eastern United States experiences typical hot and humid conditions typical of July, the beginning of some cooler weather is on the horizon from the Northwest across the Northern Plains/Upper Mississippi Vally by Friday morning. However, a nearly stationary front with several low pressure impulses along the front will produce showers and thunderstorms especially from the Northern Rockies across Northern Plains, Middle and Upper Mississippi Valley and into the Ohio and Tennessee Valleys. An enhanced chance for severe weather and heavy rain is forecast for the Upper Mississippi Valley late Tuesday as one area of low pressure moves across the region. Another region of low pressure will result in an enhanced chance for severe weather across the central and Northern Plains on Wednesday and across the Upper Mississippi Valley again on Thursday as well as the Midwest and Ohio Valley on late Thursday into Friday morning. The eastern Half of the US will generally be hot and humid through the period with temperatures well into the 80s and 90s with the highest temperatures above 100 degrees into western Texas and Oklahoma. Cooler temperatures will be common across the Northwest into the northern Rockies and then moving across the Northern and Central Plains later on Thursday into Friday morning while warmer temperatures returning to the intermountain West ahead of a cold front reaching western Washington by Friday morning. Kocin Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php