Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 132 AM EDT Mon Jul 06 2020 Valid 12Z Mon Jul 06 2020 - 12Z Wed Jul 08 2020 ...Severe thunderstorms over the northern Plains today... ...Showers and storms will continue across the Deep South to the Southeast... ...Staying warm/hot in the Upper Midwest to the Great Lakes and Appalachians... A frontal boundary over the northern Plains will continue to act as a focus for showers and thunderstorms for the next couple of days as it moves into the Great Lakes late Tuesday. Some of the thunderstorms may become severe from eastern Montana eastward into Minnesota. Some isolated flash flooding may occur in areas that see heavier rain rates. To the east of this system, very warm temperatures into the upper 80s and low 90s will be common across the Midwest into western New England and the Mid-Atlantic. Pop-up afternoon showers and storms will dot the landscape in the warm air mass. To the south, scattered showers and thunderstorms are expected to continue across the Southeast into the Tennessee Valley. Some locally heavy rain may trigger flash flooding. Temperatures will be cooler than normal given the abundant cloud cover. Along the Rio Grande, high temperatures are forecast to reach into the lower 100s but even hotter temperatures into the 110s will be common in the deserts of California/Arizona/Nevada. Breezy conditions with low relative humidity values at the surface over the Great Basin means an elevated to critical fire risk again today. Meanwhile, the next upper-level trough moving into the Pacific Northwest could trigger some showers and thunderstorms today into early Tuesday. This feature will progress through Montana where more numerous shower/storms are likely tomorrow. Fracasso Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php