Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 400 AM EDT Wed Jul 09 2025 Valid 12Z Wed Jul 09 2025 - 12Z Fri Jul 11 2025 ...The Carolinas into the Mid-Atlantic will see the potential for severe weather and flooding rainfall over the next couple of days... ...Late-day strong to severe thunderstorms and heavy rainfall are expected to impact the northern and central Plains... ...Storms along a stalling frontal boundary across the Northeast will cool temperatures; the Desert Southwest will be heating up as high temperatures in the range of 110-118 deg prompt Extreme Heat Warnings into Thursday... An approaching cold front will stall across the Mid-Atlantic for today and Thursday. In conjunction with the front serving as a lifting mechanism, rich moisture at the surface converging along a lee-side trough during the hottest times of the day will further facilitate an atmopshere capable of supporting high rainfall rates. The Weather Prediction Center has rainfall forecast amounts of 3-4 inches in the next 3 days for some locations in central Virginia, and 2-3 inches from Delaware to the Jersey Shore and across central North Carolina. Multiple waves of storms and high rainfall rates mean flash flooding is possible. WPC has introduced a moderate risk of Excessive Rainfall over central Virginia to northern North Carolina for today into early Thursday, with a slight risk covering a good chunk of the Mid-Atlantic, nearby Appalachians into the upper Ohio Valley and interior Southeast. Thursday will see a similar synoptic weather setup, only with the upper trough edging further into the Northeast, shifting the most favorable conditions for strong to severe thunderstorms farther south into the Carolinas. The most favorable locations for heavy rain and flash flooding are anticipated to be from North Carolina to southeastern Virginia on Thursday. Another area most favorable for severe weather and heavy rainfall will be across the northern and central Plains during the next couple of days. This is in response to a front beginning to lift north as a warm front. The best chance for severe thunderstorms later today will be across the northern Plains. A more widespread threat of severe weather is expected later on Thursday across the northern and central Plains as a stronger shortwave trough gets ready to eject out of the northern Rockies into the northern U.S. The more widespread nature of the severe weather on Thursday will lead to a higher threat of heavy rainfall. Therefore, WPC has issued a slight risk of excessive rainfall across portions of the north-central U.S. from Thursday into Friday morning. Upper level ridging will remain anchored across the Southwest. Temperatures will be hazardous to the public and hot weather precautions should be taken through at least Thursday. High temperatures from the California valleys to New Mexico may enter the low 100s. The deserts of Arizona and California are under an Extreme Heat Warning through Thursday with high temperatures nearing record highs and approaching the mid 110s F. The Northeast should see the mini heat-wave end as a front swings into the area with scattered showers and embedded thunderstorms. The Southeast will see typical heat and humidity for July, but apparent temperatures will be in the upper 90s and low 100s could still raise heat risk concerns. For fire weather threats, the Storm Prediction Center has a Elevated fire weather danger across the interior Northwest and the Great Basin for today, as dry fuels and gusty southwesterly surface winds provide favorable conditions for fire spread. Kong/Wilder Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php