Two very different weather threats are taking aim at the Tennessee Valley and Mid-South over the next 48 hours, prompting First Alert Weather Days across Middle Tennessee, Southern Kentucky and North Alabama. The first danger arrives today in the form of oppressive heat, followed Friday by a round of strong, soaking storms as a cold front pushes through.
Dangerous heat takes hold today
The immediate concern is the heat. Temperatures are climbing into the low to mid-90s across the region today, but the humidity is what makes it hazardous. Feels-like readings are expected to peak between 100 and 105 degrees across much of Middle Tennessee and Southern Kentucky during the mid- to late afternoon, while areas around the Huntsville, Alabama, region see heat index values in the upper 90s.
Heat at this level is not something to brush off. Forecasters urge residents to take every precaution, including staying well hydrated, remaining in cool, air-conditioned spaces as much as possible, and seeking shade with frequent breaks when outdoors. Children and the elderly are especially vulnerable because their bodies do not regulate temperature as efficiently as those of healthy adults. Drivers are also reminded to double-check the back seat before walking away from a parked vehicle, a simple habit that saves lives in extreme heat.
Strong storms move in Friday
The relief, when it comes, arrives with a catch. A cold front will track through the region Friday, breaking the heat but firing up scattered showers and thunderstorms in the process. Ahead of the front, the warm, humid and unstable air will set the stage for storm development, and the Storm Prediction Center has placed much of the area under a Marginal Risk, the lowest rung at 1 of 5 on the severe weather scale.
Friday is expected to start dry and mostly sunny, with isolated showers possible by late morning. The greater threat ramps up after noon and continues into the early evening, with the heaviest activity favored south and east of Nashville and across the Tennessee Valley. The strongest cells could produce wind gusts topping 40 mph, small hail and torrential downpours…