Harrison, TN Live Doppler Radar
Live radar for Harrison, Hamilton County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Harrison?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 264 days in the Hamilton forecast zone and Hamilton County — the most common reported hazard around Harrison, mostly in June and July. Next come flash flooding (44 days) and heavy snow & winter storms (32 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 264 | Jun 2026 | Jul 5, 2012 · 2 deaths |
| Flash flooding | 44 | May 2026 | Sep 26, 2018 · 1 death · $1.6 million damage |
| Heavy snow & winter storms | 32 | Jan 2025 | Jan 14, 2024 · 2 deaths |
| Flooding | 19 | Feb 2025 | Sep 20, 2009 · 1 death · $455,000 damage |
| Lightning casualties & damage | 8 | Aug 2025 | Jun 10, 1999 · $1.0 million damage |
| Ice storms & sleet | 3 | Feb 2015 | — |
| Debris flows | 2 | Mar 2021 | Feb 6, 2020 · $2.5 million damage |
| Hurricanes & tropical storms | 1 | Sep 2004 | Sep 16, 2004 · $15,000 damage |
Source: NOAA NCEI Storm Events Database, 1996–2026 (the latest year is partial). A "day" is a date with at least one report in the Hamilton forecast zone and Hamilton County; damage is as reported, not adjusted for inflation.
How much snow does Harrison get?
A normal year brings about 3.6 inches of snow to Harrison, based on NOAA's 1991–2020 climate normals for the Chattanooga Lovell Ap weather station 7.2 miles away. The snowiest month is usually February (1.2 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 0.0 | 0.0 | 0.3 | 1.0 | 1.2 | 1.1 | 0.0 | 0.0 |
Normal snowfall in inches. TALON Pro compares this season's snow at your location with these normals as winter goes on.
Which radars cover Harrison?
The closest NEXRAD Doppler radar is KHTX (Huntsville, AL), about 55 miles west-southwest. Radar beams climb as they travel, so the height of the lowest scan over town decides how low in a storm the radar can see.
| Radar | Distance | Lowest beam over Harrison | View |
|---|---|---|---|
| KHTX Huntsville, AL | 55 mi west-southwest | 4,000 ft | Good — most storms and steady rain or snow show clearly |
| KOHX Nashville, TN | 111 mi northwest | 11,300 ft | Limited — the beam overshoots the lowest part of storms |
| KMRX Knoxville, TN | 122 mi northeast | 13,000 ft | Limited — the beam overshoots the lowest part of storms |
Beam height is the center of the 0.5° scan above the radar, with standard refraction. Mountains near a radar can block it further.
Tornado & hail history near Harrison
Since 1950, NOAA has recorded 91 tornadoes within 25 miles of Harrison, 30 of them EF2/F2 or stronger. Most came in April and March. The strongest was an EF4 on April 27, 2011, which passed about 11 miles southeast of town and caused 20 deaths. The most recent was an EF0 on March 2, 2023, which touched down about 14 miles northeast of town.
Hail: 255 reports of 1-inch or larger hail within 25 miles since 1955, 19 of them 2 inches or more; the largest was 4.00-inch hail on May 20, 2006.
Source: NOAA Storm Prediction Center — tornadoes 1950–2025, hail 1955–2025. Distances are to each tornado's track; ratings before February 2007 use the original Fujita scale.
On TALON you get Harrison's live radar loop, rain/snow/ice colors, flash-flood risk, storm tracks with arrival times and NWS warnings free; close-up radar and rotation detection are part of TALON Pro.
Harrison radar FAQ
Where is the nearest weather radar to Harrison, TN?
KHTX (Huntsville, AL), about 55 miles west-southwest. KOHX (Nashville, TN) is 111 miles away and also covers the area.
Does radar show snow in Harrison?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Harrison the lowest scan from KHTX is about 4,000 ft up.
Is TALON's radar for Harrison free?
Yes — the US radar loop, rain/snow/ice colors, flash-flood risk, storm tracks and NWS warnings are free in any browser. Close-up radar, rotation detection and longer forecasts are part of TALON Pro.
Should I rely on radar for my safety?
No app replaces official warnings. When the National Weather Service issues a warning for Harrison, follow it right away — see watch vs. warning.
Radar for nearby towns
- Lakesite, TN radar 5 mi
- Chattanooga, TN radar 7 mi
- Collegedale, TN radar 7 mi
- Red Bank, TN radar 8 mi
- Soddy-Daisy, TN radar 10 mi
- Walden, TN radar 10 mi
- East Ridge, TN radar 10 mi
- Signal Mountain, TN radar 11 mi
- Lookout Mountain, TN radar 15 mi
- Cleveland, TN radar 16 mi