Lightning Map — Tennessee

Track real-time lightning strikes and thunderstorm activity across Tennessee. With an average of 46 thunderstorm days per year, Tennessee is a moderately active state for thunderstorms.

46
Avg Storm Days/Year
7
Cities Tracked
6.9M
Population

Data sourced from NOAA GOES-19 Geostationary Lightning Mapper (GLM) and the Storm Prediction Center (SPC).

About Lightning in Tennessee

Tennessee averages 46 thunderstorm days per year, placing it well above the national average of 25 days. Located at approximately 36°N latitude, Tennessee is stretching from the Great Smoky Mountains to the Mississippi River, with varied terrain that channels Gulf moisture and enhances storm development across the Tennessee Valley.

In Tennessee, warm, moist air from the Gulf of Mexico combines with daytime heating to produce convective storms. Peak thunderstorm activity occurs during April through September, when conditions align for the most frequent lightning strikes. With a population of 6.9 million residents, storm awareness and lightning safety are critical concerns for anyone living in or visiting Tennessee.

#13
out of 50 states
46
storm days/year
21 more than the US average

When Thunderstorms Peak in Tennessee

Thunderstorm season in Tennessee runs from April through September. Spring severe weather season can produce dangerous storms when warm moist air collides with cooler air masses. Summer storms are driven by afternoon convective heating, typically building in the mid to late afternoon hours.

Peak Season
April through September

Top Cities in Tennessee

Monitor lightning activity in these Tennessee cities

Nashville

TN
47 storm days/yr

Memphis

TN
52 storm days/yr

Knoxville

TN
42 storm days/yr

Chattanooga

TN
48 storm days/yr

Clarksville

TN
46 storm days/yr

Murfreesboro

TN
46 storm days/yr

Franklin

TN
46 storm days/yr

Lightning Safety in Tennessee

Stay safe during the 46 thunderstorm days Tennessee averages each year

Follow the 30-30 Rule

If the time between seeing lightning and hearing thunder is 30 seconds or less, seek shelter. Stay indoors for 30 minutes after the last thunderclap.

Stay Indoors During Storms

With 46 thunderstorm days annually in Tennessee, having a plan for when storms strike is essential. Avoid windows and stay away from plumbing.

Monitor Lightning Activity

Use Lightning Tracker to get real-time alerts when storms approach your area in Tennessee. Early awareness helps you make safer decisions.

Outdoor Safety

If caught outside, avoid open fields, hilltops, and isolated trees. Seek shelter in a substantial building or hard-topped vehicle.

Useful Guides for Tennessee

These pages help visitors who search for maps, nearby strikes, and alert setup

Near me How to check lightning near you in Tennessee

Use this guide when you want to know how fast nearby strikes can become a real safety problem in Tennessee.

 Map guide How to read a lightning map for Tennessee

Understand clusters, timing, and storm movement before using launch alerts in the app.

 Alerts Best ways to get lightning alerts in Tennessee

Compare app alerts, NOAA weather radio, and local warning workflows for storms in your area.
App links later

Track Lightning in Tennessee Right Now

The app links can be added after release. For now, use the Tennessee hub, city pages, and lightning guides to cover map and safety intent.

Launching Soon iOS & Android

App links go live at release. For now use the lightning maps and guides on this site.