By 5:35 a.m. CDT Tuesday, Nashville was already sweating it out, starting the day clear and muggy with temperatures near 77°F at Nashville International Airport. The sun will crank those numbers up to about 97°F this afternoon, with heat index readings pushing into the 110s and creating dangerous conditions for anyone spending extended time outside. Scattered storms become possible after noon, and a Flood Watch is in effect tonight into Wednesday morning for much of Middle Tennessee, so expect a scorching afternoon followed by an unsettled, storm-prone evening.
Heat Advisory and Local Response
Local crews and volunteers have been out on heat patrols, handing out water and checking in on people who are especially vulnerable to extreme heat. Officials are urging residents to stay in air-conditioned spaces when possible, skip heavy exertion between about 10 a.m. and 4 p.m., and keep an eye on elderly neighbors and pets. For details on outreach efforts and available resources, see Metro Nashville OEM.
Evening Storms Could Produce Flooding
A Flood Watch runs from this evening through Wednesday morning as thunderstorms could drop several inches of rain in a short time, raising the risk of flash flooding and ponding on streets. The setup also comes with a slight risk for organized storms tonight that could bring damaging wind gusts and frequent lightning. Overnight rainfall totals of a half to three-quarters of an inch are possible across many spots, with locally higher amounts under the strongest cells, according to NWS Nashville.
When To Change Plans
If you have outdoor evening plans or expect to be on the road after about 7 p.m., prepare for sudden downpours and lightning that could send you scrambling for cover and slow traffic to a crawl. Shifting activities earlier in the day or moving them indoors is the safer bet, and if you must drive, avoid going through standing water. Keep a charged phone nearby for severe-weather alerts, check radar and local updates before heading out, and follow Metro social channels or call 311 for the latest advisories.
