Extreme Heat Warning in Effect as Middle Tennessee Recovers From July 4th Storm Barrage
Middle Tennessee faces heat indices of 105 to 112 degrees this Fourth of July weekend, one day after severe thunderstorms and flash flooding battered communities from Clarksville to Murfreesboro.
NASHVILLE, TENNESSEE — Middle Tennessee faces a dangerous combination of extreme heat and storm damage this Independence Day weekend, as the National Weather Service in Nashville extended an Extreme Heat Warning through Thursday evening while communities in the region still deal with Wednesday afternoon’s wave of severe thunderstorms.
Dangerous Heat Indices Through the Holiday Weekend
The Extreme Heat Warning, issued by the National Weather Service at 12:47 a.m. CDT on July 3, remains in effect until 8 p.m. CDT Thursday evening. Heat indices across Middle Tennessee are expected to peak between 105 and 112 degrees, with overnight lows staying in the 70s — offering little relief to residents.
A Heat Advisory takes effect at 8 p.m. CDT Thursday and runs through 8 p.m. CDT Saturday, extending the dangerous conditions through the July 4th holiday. The National Weather Service warned that hot temperatures combined with high humidity significantly increase the risk of heat-related illnesses.
Severe Thunderstorms Swept Across Region Wednesday
Before the heat settled in, a prolonged barrage of severe thunderstorms moved through Middle Tennessee on Wednesday, July 2, triggering more than a dozen warnings from the National Weather Service beginning in the early afternoon and continuing into the evening hours.
The storms threatened a wide geographic area. A Severe Thunderstorm Watch remained valid until 8 p.m. CDT Wednesday for 15 counties in Middle Tennessee: Bedford, Coffee, Dickson, Giles, Hickman, Houston, Humphreys, Lawrence, Lewis, Marshall, Maury, Montgomery, Perry, Stewart, and Wayne. Cities covered under that watch included Centerville, Clarksville, Clifton, Collinwood, Columbia, Dickson, Dover, Erin, Hohenwald, Lawrenceburg, Lewisburg, Linden, Lobelville, Manchester, McEwen, New Johnsonville, Pulaski, Shelbyville, Tennessee Ridge, Tullahoma, Waverly, and Waynesboro.
The storm system produced 60 mph wind gusts and hail ranging from penny to quarter size across multiple warnings, with the National Weather Service citing radar as the primary detection source throughout the event. Officials warned residents to expect damage to roofs, siding, and trees in affected areas. Hail damage to vehicles was also cited in warnings involving quarter-size hail near Clarksville.
Flash Flooding Hit Clarksville; Storms Tracked Across Multiple Counties
Northern Montgomery County, including Clarksville and Woodlawn, was placed under a Flash Flood Warning from 5:28 p.m. until 8:30 p.m. CDT Wednesday. Doppler radar indicated thunderstorms had already dropped between one and three inches of rain on the area by the time the warning was issued, with flash flooding described as ongoing or imminent. The National Weather Service warned of flooding in small creeks and streams, urban areas, highways, streets, underpasses, and other low-lying areas.
Clarksville was also targeted directly by multiple Severe Thunderstorm Warnings throughout the afternoon. Storms were tracked near the city from as early as 4:43 p.m. CDT, with separate warnings covering southwestern, northeastern, and broader Montgomery County through the early evening. Interstate 24 between mile markers 1 and 27 was listed under multiple warnings at various points during the event.
In the western part of the region, a severe thunderstorm located near Tennessee Ridge at 5:17 p.m. CDT prompted warnings covering southwestern Montgomery County, Stewart County, Houston County, and Humphreys County. That storm was moving west at 10 mph and threatened Waverly, Camden, Dover, Erin, New Johnsonville, McEwen, Tennessee Ridge, Hurricane Mills, Big Rock, Cumberland City, Land Between The Lakes, Houston County Airport, and Indian Mound. Interstate 40 between mile markers 136 and 139 was included in that warning.
By 6:26 p.m. CDT, a severe thunderstorm had moved to 10 miles west of Tennessee Ridge, placing Dover, Erin, Tennessee Ridge, Big Rock, Land Between The Lakes, and Houston County Airport under an updated warning as the storm continued westward at 15 mph.
Earlier in the afternoon, storms also struck south of Nashville. A warning issued at 3:59 p.m. CDT covered southwestern Rutherford County and all of Williamson County, with a storm nearly stationary about 12 miles southeast of Franklin threatening Murfreesboro, Franklin, Smyrna, Brentwood, La Vergne, Spring Hill, Nolensville, Thompson’s Station, Eagleville, Rockvale, Triune, and the Natchez Trace at Highway 96. Interstates 65, 24, and 840 were all included in that warning. Separate warnings followed for Nolensville, Antioch, and the broader area through 4:45 p.m. CDT.
Residents throughout Middle Tennessee are urged to limit outdoor activity during peak afternoon heat, check on elderly neighbors and those without air conditioning, and stay alert to any additional weather alerts issued by the National Weather Service in Nashville through the holiday weekend.
