Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 359 PM EDT Tue Aug 29 2017 Valid 00Z Wed Aug 30 2017 - 00Z Fri Sep 01 2017 ...Heavy rainfall will shift to the north and east of Houston over the next few days... ...A risk of tornadoes possible across areas in the Southeast and the Lower Mississippi Valley... ...Rain will continue across the Mid-Atlantic through Wednesday morning... ...Record heat will persist over the western U.S... As Tropical Storm Harvey continues its northerly trek toward the western Louisiana coast, the heavy precipitation will begin to taper off along the western edges of the greater Houston area. Overnight, there will be a shift in the heavy precipitation to fall more north and east of the metropolitan area. The heavy rainfall will also still continue along the upper Texas coast through Wednesday morning as Harvey makes landfall. There is still a high risk of flash flooding that will continue through Wednesday morning. In addition, heavy rainfall is also expected to continue along the central Gulf Coast--with a moderate risk of flash flooding. Once inland, Harvey will weaken to a tropical depression while the axis of heavy precipitation spreads across the Lower Mississippi Valley, Southeast, and the Tennessee Valley. As Harvey continues to lift northward into the Lower Mississippi Valley by Thursday, heavy rainfall will continue across the Tennessee Valley and begin to move into the Ohio Valley. Rainfall can also be expected to increase across Georgia and the Carolinas. In terms of the risk of tornadoes, the greater risk will exist along the Central Gulf Coast through tomorrow morning. Once Harvey begins to lift northward, the risk will shift across parts of the Lower Mississippi Valley and the Southeast. For more information, see the Storm Prediction Center. Potential Tropical Cyclone Ten will continue moving north and east along the North Carolina coastline. Widespread moderate rainfall will continue through DelMarVa through tonight. As the low center of P.T.C. Ten moves farther away from the coast, rainfall across this region will decrease. Reinhart Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php