Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 351 PM EDT Sat Jul 02 2016 Valid 00Z Sun Jul 03 2016 - 00Z Tue Jul 05 2016 ...Heavy rains with embedded strong to severe thunderstorms will be possible from the Central Plains to the Ohio Valley this weekend... ...Drier and cooler conditions from the Great Lakes to New England this weekend... A pacific cold front will push through the Northwestern states tonight, cross the Northern Rockies on Sunday and track eastward through the northern High Plains on Monday. Showers and a few thunderstorms will develop along and ahead of the advancing system across portions of Montana and the Dakotas. Cooler temperatures are forecast this weekend across much of the Northwest and Intermountain West by the beginning of the week. Heavy rains with embedded strong to severe thunderstorms will be possible from the Central Plains to the Ohio Valley over the next couple of days. The greatest chance for flash flooding today will be across Kansas and into Missouri...where anomalous low level moisture ahead of a broad shortwave edging eastward out of the Four Corners states today is interacting with a frontal boundary lingering through the region. The threat for flash flooding and possible severe storms is expected to shift into portions of the Ohio Valley as the lingering frontal boundary surges northward as warm front through the Middle Mississippi and Tennessee valleys on Sunday. Showers and thunderstorms will also be possible across portions of the Southeast and southern Mid-Atlantic states. As the warm front continues to lift northward through the Ohio valley and Mid-Atlantic on Monday, so will the northern extent of the showers and thunderstorms. Strong to severe storms and heavy rainfall will be possible across Kentucky, southern Ohio and southern West Virginia. The Great Lakes region and areas east to New England will be mostly dry for a few days as cooler air streams into the area. Many locations will have high temperatures in the upper 70s and lower 80s. Campbell Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php