Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 411 PM EDT Wed Aug 30 2017 Valid 00Z Thu Aug 31 2017 - 00Z Sat Sep 02 2017 ...Tropical Storm Harvey will spread heavy rain from parts of the Lower Mississippi Valley and parts of the Ohio/Tennessee Valleys... ...There is a slight risk of severe weather over parts of the Central Gulf Coast... ...Heavy rain possible over parts of the Southern/Central Appalachians... Tropical Storm Harvey is forecast to move northeastward into the Ohio Valley by Friday evening while weakening. Harvey will produce heavy rain over parts of the Lower Mississippi Valley that will slowly weaken and come to an end overnight Thursday. The heavy rain will move into parts of the Ohio/Tennessee Valleys Thursday into Friday. See the National Hurricane Center for the latest information on Harvey's track, intensity, and storm total rainfall. Elsewhere, light to moderate rainfall should come to an end over areas of southern coastal New England. Conditions are expected to remain on the cooler end for late August/early September with forecast highs generally 5 to 10 degrees below climatology from the Mississippi River eastward. The cool spot will be across the Great Lakes and interior northeastern states as highs stay in the 60s with a strong cold front sweeping through. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php