Greenback, TN Live Doppler Radar
Live radar for Greenback, Loudon County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Greenback?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 151 days in the Loudon forecast zone and Loudon County — the most common reported hazard around Greenback, mostly in June and July. Next come heavy snow & winter storms (29 days) and flash flooding (17 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 151 | Mar 2026 | Jun 10, 2005 · 1 death |
| Heavy snow & winter storms | 29 | Jan 2026 | — |
| Flash flooding | 17 | May 2026 | May 5, 2003 · $3.9 million damage |
| Flooding | 7 | Jul 2015 | Feb 14, 2003 · $50,000 damage |
| Ice storms & sleet | 5 | Feb 2015 | Dec 16, 2010 · $10,000 damage |
| High winds | 1 | Dec 2006 | Dec 1, 2006 · $20,000 damage |
| Lightning casualties & damage | 1 | Aug 2006 | Aug 28, 2006 · $60,000 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 Loudon forecast zone and Loudon County; damage is as reported, not adjusted for inflation.
How much snow does Greenback get?
A normal year brings about 4.0 inches of snow to Greenback, based on NOAA's 1991–2020 climate normals for the Lenoir City weather station 11 miles away. The snowiest month is usually January (1.6 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 0.0 | 0.1 | 0.4 | 1.6 | 1.3 | 0.6 | 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 Greenback?
The closest NEXRAD Doppler radar is KMRX (Knoxville, TN), about 56 miles northeast. 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 Greenback | View |
|---|---|---|---|
| KMRX Knoxville, TN | 56 mi northeast | 4,100 ft | Good — most storms and steady rain or snow show clearly |
| KHTX Huntsville, AL | 119 mi west-southwest | 12,500 ft | Limited — the beam overshoots the lowest part of storms |
| KGSP Greer, SC | 122 mi east-southeast | 13,100 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 Greenback
Since 1950, NOAA has recorded 55 tornadoes within 25 miles of Greenback, 17 of them EF2/F2 or stronger. Most came in April and March. The strongest was an EF4 on April 27, 2011, which passed about 10 miles southeast of town. The most recent was an EF0 on May 30, 2025, which touched down about 18 miles west of town.
Hail: 221 reports of 1-inch or larger hail within 25 miles since 1955, 14 of them 2 inches or more; the largest was 4.00-inch hail on April 28, 1959.
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 Greenback'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.
Greenback radar FAQ
Where is the nearest weather radar to Greenback, TN?
KMRX (Knoxville, TN), about 56 miles northeast. KHTX (Huntsville, AL) is 119 miles away and also covers the area.
Does radar show snow in Greenback?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Greenback the lowest scan from KMRX is about 4,100 ft up.
Is TALON's radar for Greenback 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 Greenback, follow it right away — see watch vs. warning.
Radar for nearby towns
- Vonore, TN radar 5 mi
- Loudon, TN radar 13 mi
- Maryville, TN radar 13 mi
- Lenoir City, TN radar 13 mi
- Louisville, TN radar 14 mi
- Madisonville, TN radar 14 mi
- Farragut, TN radar 16 mi
- Alcoa, TN radar 16 mi
- Sweetwater, TN radar 17 mi
- Oak Ridge, TN radar 23 mi