Philadelphia, TN Live Doppler Radar
Live radar for Philadelphia, Loudon County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Philadelphia?
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 Philadelphia, 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 Philadelphia get?
A normal year brings about 4.0 inches of snow to Philadelphia, based on NOAA's 1991–2020 climate normals for the Lenoir City weather station 10.8 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 Philadelphia?
The closest NEXRAD Doppler radar is KMRX (Knoxville, TN), about 65 miles east-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 Philadelphia | View |
|---|---|---|---|
| KMRX Knoxville, TN | 65 mi east-northeast | 5,100 ft | Good — most storms and steady rain or snow show clearly |
| KHTX Huntsville, AL | 108 mi west-southwest | 10,800 ft | Limited — the beam overshoots the lowest part of storms |
| KOHX Nashville, TN | 127 mi west-northwest | 13,900 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 Philadelphia
Since 1950, NOAA has recorded 61 tornadoes within 25 miles of Philadelphia, 21 of them EF2/F2 or stronger. Most came in April and May. The strongest was an EF4 on April 27, 2011, which passed about 24 miles south-southwest of town and caused 20 deaths. The most recent was an EF0 on May 30, 2025, which touched down about 5 miles west-southwest of town.
Hail: 268 reports of 1-inch or larger hail within 25 miles since 1955, 21 of them 2 inches or more; the largest was 4.00-inch hail on March 29, 1997.
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 Philadelphia'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.
Philadelphia radar FAQ
Where is the nearest weather radar to Philadelphia, TN?
KMRX (Knoxville, TN), about 65 miles east-northeast. KHTX (Huntsville, AL) is 108 miles away and also covers the area.
Does radar show snow in Philadelphia?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Philadelphia the lowest scan from KMRX is about 5,100 ft up.
Is TALON's radar for Philadelphia 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 Philadelphia, follow it right away — see watch vs. warning.
Radar for nearby towns
- Loudon, TN radar 5 mi
- Sweetwater, TN radar 7 mi
- Vonore, TN radar 11 mi
- Madisonville, TN radar 11 mi
- Lenoir City, TN radar 12 mi
- Greenback, TN radar 13 mi
- Kingston, TN radar 15 mi
- Farragut, TN radar 18 mi
- Englewood, TN radar 18 mi
- Athens, TN radar 19 mi