Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 356 AM EDT Mon Aug 03 2020 Valid 12Z Mon Aug 03 2020 - 12Z Wed Aug 05 2020 ...Tropical Storm Isaias is forecast to make landfall in the Carolinas tonight, causing dangerous storm surge and flash flooding for the Eastern Seaboard... Tropical Storm Isaias will continue to move northward through the far western Atlantic today and is expected to make landfall in the Carolinas by tonight, causing strong tropical storm force winds with hurricane conditions possible. Life-threatening storm surge is possible along the coasts of Florida, Georgia, the Carolinas, and up toward the Chesapeake Bay as Isaias moves northward quickly. In fact, Isaias is forecast to move through the Mid-Atlantic on Tuesday and into the Northeast by Wednesday morning. Very heavy rainfall and life-threatening flash and urban flooding are threats along the storm's track through the Eastern Seaboard, along with minor to moderate river flooding. Moderate Risks of flash flooding are in place for much of the Carolinas and Mid-Atlantic through Tuesday as widespread rainfall totals of 3-6 inches are expected, with isolated maximum totals of 8 inches. A few tornadoes are also possible ahead of Isaias in the Carolinas today and tonight. Elsewhere, showers and thunderstorms are possible in the Mid-Atlantic north of Isaias today, as well as back along a frontal system in the Ohio Valley and Great Lakes. There is also potential for scattered thunderstorms in much of the High Plains today and tomorrow, near a quasi-stationary front expected to eventually move eastward late on Tuesday. Marginal to Slight Risks of severe weather are in place there. Temperatures are expected to remain hot across the Desert Southwest, with temperatures in the 110s prompting Excessive Heat Warnings again in some areas. Heat Advisories also remain in place for portions of the Central Great Basin as above normal temperatures continue. Red Flag Warnings are also in effect today over portions of the Great Basin where there should be favorable conditions for fire weather. Temperatures are expected to be over 100 degrees to near record levels in the Southern High Plains Tuesday and Wednesday. Meanwhile, cooler than average temperatures with highs only in the 70s are expected for the Northern/Central Plains and the Midwest. Tate Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php