Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 406 PM EDT Sun Jul 28 2019 Valid 00Z Mon Jul 29 2019 - 00Z Wed Jul 31 2019 ...Showers and thunderstorms across the Upper Midwest could be accompanied by severe weather and flash flooding through tonight... ...Excessive heat over interior southern California should gradually ease during the next couple of days... ...Heat returns for the Northeast... An expansive area of high pressure that has been bringing fine and relatively cool weather across the eastern two-thirds of the country will gradually give way to a cold front moving steady across the Plains. Southwesterly flow ahead of the cold front will transport warmer air from the south toward the Midwest and into the Northeast for the next few days. This will allow heat to return during the afternoon hours for these areas along with an increasing chance of showers and thunderstorms. The best chance of thunderstorms will be through tonight over the upper Midwest to the north of a stationary front where rain could become heavy to result in areas of flooding along with the possibility of severe weather. The front will also trigger scattered thunderstorms over upstate New York through Monday morning before it gradually dissipates. Over the western U.S., monsoonal moisture will keep a chance of afternoon and evening showers and thunderstorms over the central to southern Rockies near the tail end of a cold front. Some showers and thunderstorms will also advance eastward across the Intermountain region and into the northern Rockies on Monday north of a stationary front. The precipitation should move into the central to northern Plains on Tuesday as a low pressure center is forecast to form in the lee of the Rockies. Meanwhile, excessive heat over interior southern California should gradually ease during the next couple of days but fire danger remains high for many locations in the western U.S. Scattered thunderstorms are expected to linger over Florida for the next few days near a dissipating front. Scattered thunderstorms are also expected for the central to western Gulf coast region due to the presence of an upper-level disturbance interacting with an approaching cold front. Kong Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php