Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 333 PM EDT Tue May 03 2016 Valid 00Z Wed May 04 2016 - 00Z Fri May 06 2016 ...Severe thunderstorms and heavy rain possible across portions of the Southeast and southern Mid-Atlantic... ...Above average temperatures expected from the interior Northwest to the northern High Plains... Showers and thunderstorms continue to fire up ahead of a slow-moving frontal boundary that's moving through the Mid-Atlantic and Southeast. Conditions are favorable this afternoon and evening for some of the storms to turn severe - the Storm Prediction Center has highlighted much of the southern Mid-Atlantic and Southeast regions with a slight risk. For additional information about the risk of severe weather refer the the SPC webpage. Additionally, any of storms have the potential to dump heavy rainfall over the area. Excessive rainfall outlooks have been issued for portions of the Central Appalachians and Mid-the Atlantic. With the slow eastward progression of this system, heavier precipitation will be possible through the end of the work week. A cold front dropping south from southern Canada bring showers and thunderstorms to the Upper Great Lakes, the Ohio Valley and the Lower Great Lakes tonight through Wednesday. A low pressure system will evolve across the central Appalachians and Mid-Atlantic region by late Wednesday night/early Thursday morning, which will bringing additional showers and thunderstorms to those areas. Temperatures across the interior Northwest and northern High Plains will be above average for early May with high pressure at the mid and upper-levels of the atmosphere in place. Many locations may see afternoon temperatures reaching 15 to 25 degrees above normal. Scattered showers and thunderstorms will expand eastward into the northern Intermountain states as a slow-moving front nudges inland. Campbell Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php