Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 351 PM EDT Mon Jul 03 2023 Valid 00Z Tue Jul 04 2023 - 00Z Thu Jul 06 2023 ...Well above-normal to record-breaking heat expected for portions of the Northwest... ...Strong to severe storms likely for portions of the northern to central Plains and the Midwest... ...Unsettled weather, including strong to severe storms, expected from parts of the Mid Atlantic and Southeast into the southern Plains... In the West, temperatures are expected to remain above normal along much of the West Coast into the southwestern U.S., with record-breaking temperatures forecast for portions of western Oregon on Tuesday. With temperatures likely to climb to their highest of the season so far, Heat Advisories are in effect for portions of western Oregon and the interior counties of far northern California. With another day of temperatures climbing well in excess of 110F, Excessive Heat Warnings are scheduled to remain in effect through Tuesday across the lower deserts of Arizona and southeastern California. Over the central U.S., a strong cold front is forecast to push south and east across the northern Plains and Upper Midwest. Strong to severe storms are expected to develop near the front, with damaging wind and large hail possible this evening, especially for areas east of the Big Horn Mountains through South Dakota. The focus for severe storms is forecast to shift farther south and east, extending from the upper Mississippi Valley to the central High Plains on Tuesday. Scattered severe thunderstorms, producing damaging winds, can be expected across this region. By Wednesday, the front and the focus for showers and storms will slide farther south and east into the central Plains and mid Mississippi Valley. Heavy rainfall with isolated instances of flash flooding are possible with these storms through the period as well. Behind the front, much cooler air will spread from the northern High Plains on Tuesday through the remainder of the northern Plains and into the central High Plains on Wednesday. Daytime highs of 15-20 degrees below normal can be expected for parts of the region. Seasonal to above-average temperatures will continue across the southern Plains and through much of the eastern U.S. Showers and storms developing ahead of a slow-moving front extending from the Northeast back into the southern Plains are likely to continue into this evening. Some of these storms are expected to become strong to severe, with damaging winds likely across parts of the Mid Atlantic States through the early evening hours. Showers and thunderstorms are forecast to develop once again along the front as it drifts slowly across the region on Tuesday. Pereira Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php