Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 335 PM EDT Thu Jul 11 2024 Valid 00Z Fri Jul 12 2024 - 00Z Sun Jul 14 2024 ...Stalled frontal boundary to produce heavy rainfall chances across portions of the Mid-Atlantic through Friday... ...Dangerous and record-breaking heat to continue for much of the West through the end of the work week, while sizzling temperatures also begin to build across the Central Plains and Southeast... A frontal boundary stalling along the East Coast today and a developing area of low pressure across the Southeast will help fuel scattered showers and thunderstorms for much of the eastern U.S. into early this weekend. The main weather hazard associated with these storms are expected to be related to heavy rainfall. Intense rain rates are most likely across portions of the eastern Mid-Atlantic through Friday, where a Slight Risk (level 2/4) of Excessive Rainfall is in effect. Isolated showers and storms are also anticipated from the central/southern Florida Peninsula to southern New England, where the flash flooding threat is more localized until the highest rainfall chances begin to diminish on Saturday. Remain weather aware if traveling or residing in flood prone regions and always remember to never drive through flooded roadways. Record-breaking heat is set to continue for large sections of the country into this weekend, while also rebuilding throughout other areas. Highs on Friday and Saturday are forecast to reach into the upper 90s and triple digits from the Southwest to Great Plains, which could also reach into daily record territory. Thermometers soaring into the 110s and 120s are expected in the Desert Southwest and typical interior valley hot spots. Widespread Excessive Heat Warnings and Heat Advisories are in effect for the West (outside of parts of the Northwest), as well as scattered throughout the central and northern High Plains. Heat is also forecast to rebuild across the Southeast by Saturday as upper ridging returns. Highs into the mid-to-upper 90s are forecast, with heat indices into the triple digits when humidity levels are factored in. Be sure to follow proper heat safety, which includes staying hydrated and limiting outdoor activity. Elsewhere, monsoonal moisture is anticipated to remain throughout parts of the Southwest. Storms could lead to areas of damaging wind gusts through tonight in southeast New Mexico, as well as localized flash flooding. Active weather also returns to the Northern Plains and Upper Midwest by the weekend with scattered severe thunderstorms and heavy rain possible ahead of an approaching cold front. A Slight Risk (level 2/5) of Severe Weather has been issued for Saturday by the Storm Prediction Center. Snell Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php