Grimsley, TN Live Doppler Radar
Live radar for Grimsley, Fentress County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Grimsley?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 103 days in the Fentress forecast zone and Fentress County — the most common reported hazard around Grimsley, mostly in June and May. Next come heavy snow & winter storms (38 days) and flash flooding (27 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 103 | Mar 2026 | Feb 29, 2012 · $100,000 damage |
| Heavy snow & winter storms | 38 | Jan 2026 | Feb 20, 2015 · $15 million damage |
| Flash flooding | 27 | Jun 2026 | Jul 20, 2023 · $100,000 damage |
| Flooding | 10 | Aug 2021 | Aug 18, 2010 · $5.3 million damage |
| Lightning casualties & damage | 10 | Jun 2017 | Jul 1, 2005 · 1 death · $10,000 damage |
| High winds | 3 | Mar 2025 | Mar 3, 2023 · $500,000 damage |
| Ice storms & sleet | 3 | Dec 2010 | Mar 12, 2009 · $25,000 damage |
| Extreme cold & wind chill | 2 | Jan 2026 | — |
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 Fentress forecast zone and Fentress County; damage is as reported, not adjusted for inflation.
How much snow does Grimsley get?
A normal year brings about 13 inches of snow to Grimsley, based on NOAA's 1991–2020 climate normals for the Allardt weather station 9.9 miles away. The snowiest month is usually January (4.0 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 0.1 | 0.1 | 2.4 | 4.0 | 3.8 | 2.4 | 0.4 | 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 Grimsley?
The closest NEXRAD Doppler radar is KOHX (Nashville, TN), about 87 miles west. 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 Grimsley | View |
|---|---|---|---|
| KOHX Nashville, TN | 87 mi west | 7,800 ft | Fair — the beam can pass over shallow snow and low-level rotation |
| KMRX Knoxville, TN | 89 mi east | 8,100 ft | Fair — the beam can pass over shallow snow and low-level rotation |
| KHTX Huntsville, AL | 111 mi south-southwest | 11,300 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 Grimsley
Since 1950, NOAA has recorded 68 tornadoes within 25 miles of Grimsley, 22 of them EF2/F2 or stronger. Most came in April and May. The strongest was an F4 on April 3, 1974, which passed about 8 miles west-southwest of town and caused 10 deaths. The most recent was an EF1 on February 6, 2025, which passed about 19 miles west of town.
Hail: 151 reports of 1-inch or larger hail within 25 miles since 1955, 9 of them 2 inches or more; the largest was 4.50-inch hail on June 2, 1998.
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 Grimsley'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.
Grimsley radar FAQ
Where is the nearest weather radar to Grimsley, TN?
KOHX (Nashville, TN), about 87 miles west. KMRX (Knoxville, TN) is 89 miles away and also covers the area.
Does radar show snow in Grimsley?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Grimsley the lowest scan from KOHX is about 7,800 ft up, so light snow from shallow clouds can be under-shown — check NWS winter alerts too.
Is TALON's radar for Grimsley 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 Grimsley, follow it right away — see watch vs. warning.
Radar for nearby towns
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