Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 357 PM EDT Fri Sep 12 2025 Valid 00Z Sat Sep 13 2025 - 00Z Mon Sep 15 2025 ...Thunderstorms continue over the Southern Rockies, High Plains, and South Florida; scattered flash flooding and severe weather possible... ...Relatively cool temperatures anticipated this weekend west of the Continental Divide; warm weather forecast downwind across the Central and Eastern U.S... Portions of the Southern Rockies, High Plains, and South Florida continue to be a focus for showers and thunderstorms on the flank(s) of an upper-ridge sandwiched over the Heartland. To the West, scattered flash flooding, hail, and severe wind remain possible today near the Four Corners area and Northern High Plains as thunderstorms expand in coverage downstream of an amplified upper-trough. Eventually, the approach of the upper-trough and an emerging cold front should shift the heavy rain and severe weather threat eastward into the High Plains (both Northern and Southern) tomorrow, with a similar coverage of impacts expected. Meanwhile, in the East, isolated to scattered urban flash flood potential will persist across South Florida through Sunday with storms expected near a stubborn front which has now meandered south of the Florida Peninsula. With the advance of the aforementioned upper-trough and cold front, relatively cool temperatures are forecast across the Intermountain West this weekend with daytime highs 10-15 degrees below normal (generally in the 70's-80's). In stark contrast to the West, some of the Central U.S. will see warm, above-average temperatures eclipsing the mid-upper 90's this weekend. The latest experimental HeatRisk guidance suggests that this hot weather could possibly impact anyone without access to cooling or hydration on Saturday and Sunday. Looking beyond the weekend, warm temperatures will persist across the Central U.S., although as of now heat impacts beyond will generally remain confined to those sensitive to heat. Asherman Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php