Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 321 AM EDT Wed May 9 2018 Valid 12Z Wed May 9 2018 - 12Z Fri May 11 2018 ...Best chances for rain across the northern half of the U.S. and the southern tier remains mostly dry... Most of the eastern U.S. will enjoy partly cloudy conditions for Wednesday with surface high pressure building into the region. Temperatures are expected to be warmer than the past couple of days as the current air mass over the region modifies. Across the north-central U.S., a surface low tracking eastward across the Great Lakes region will support scattered showers and storms, with the greatest rainfall totals likely for Wisconsin, Michigan, and the northern Ohio Valley. Some strong thunderstorms will also be possible as this disturbance passes through the region, and these storms could also affect the Mid-Atlantic and Northeast U.S. going into Thursday. Across the West, scattered showers and a few storms are expected from the Cascades to the northern Rockies on Wednesday as a cold front moves across the Intermountain West. Locally enhanced heavier rainfall is possible for the windward terrain. Another area of enhanced rainfall is expected across Nebraska and South Dakota as another surface low develops over the Plains by the end of the week. Farther to the south over the Desert Southwest, hot weather will continue underneath upper level ridging, with temperatures likely exceeding 100 degrees for the lower elevations of Arizona, southern Nevada, and eastern California. D. Hamrick Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php