614 FXUS01 KWBC 071957 PMDSPD Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 355 PM EDT Thu May 07 2026 Valid 00Z Fri May 08 2026 - 00Z Sun May 10 2026 ...Heavy rain and thunderstorms to persist across the Southeast and Lower Mississippi Valley through the end of the week... ...A new frontal system, originating from the Northern Rockies, will bring showers and thunderstorms through the Midwest and Great Lakes before reaching the Northeast... ...Temperatures to remain below average across much of the central U.S., while the Northwest continues to moderate... Numerous showers and thunderstorms will continue to make weather headlines across the Gulf Coast region through Saturday in the general vicinity of a stalled frontal boundary. Areas from southeastern Texas to the Florida Panhandle have the potential to get 1 to 2 inches of additional rainfall, with some localized 3+ inch amounts possible with more persistent thunderstorms across portions of Louisiana and southern Mississippi. In terms of severe weather potential, a Slight Risk remains valid through tonight from the Storm Prediction Center across portions of the Florida Panhandle, and a Marginal Risk going into Friday and Saturday extending from there to the southern Plains. Farther north, the surface low-pressure system that developed over the Northern Plains and Rockies will progress southeastward across the Midwest and Great Lakes region through the remainder of the week. This system will be supported by a mid-level shortwave trough that will provide the necessary lift for widespread showers and thunderstorms across the Ohio Valley and into parts of the Mid-Atlantic by Friday morning. As the system continues its eastward trek, precipitation will expand into the Northeast and New England to end the work week. High-elevation regions in the interior Northeast could see a brief transition to a wintry mix during the overnight hours as cooler air filters in behind the system. In the wake of the late-season winter storm across the Rockies, a cooler air mass will remain entrenched over the central and eastern portions of the country. Meanwhile, in the West, above-average conditions will continue as the upper-level trough vacates the region and an upper-level ridge moves in. Temperatures will hover around the upper 70s and low 80s to end the week, while parts of the Desert Southwest will return to exceeding 100 degrees. Hamrick/Blanco-Alcala Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php $$