Knox, PA Live Doppler Radar
Live radar for Knox, Clarion County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Knox?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 124 days in the Clarion forecast zone and Clarion County — the most common reported hazard around Knox, mostly in July and June. Next come heavy snow & winter storms (44 days) and flash flooding (35 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 124 | Jun 2026 | Oct 6, 2024 · $1.0 million damage |
| Heavy snow & winter storms | 44 | Mar 2026 | Feb 1, 2008 · $25,000 damage |
| Flash flooding | 35 | Jun 2025 | Jul 19, 1996 · 1 death · $75 million damage |
| High winds | 20 | Feb 2019 | Sep 14, 2008 · $750,000 damage |
| Flooding | 17 | Jul 2019 | Sep 17, 2004 · $2.0 million damage |
| Ice storms & sleet | 12 | Feb 2016 | Jan 5, 2005 · $20,000 damage |
| Extreme cold & wind chill | 10 | Jan 2025 | — |
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 Clarion forecast zone and Clarion County; damage is as reported, not adjusted for inflation.
Which radars cover Knox?
The closest NEXRAD Doppler radar is KPBZ (Pittsburgh, PA), about 60 miles 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 Knox | View |
|---|---|---|---|
| KPBZ Pittsburgh, PA | 60 mi southwest | 4,600 ft | Good — most storms and steady rain or snow show clearly |
| KCCX State College, PA | 83 mi east-southeast | 7,200 ft | Fair — the beam can pass over shallow snow and low-level rotation |
| KCLE Cleveland, OH | 121 mi west | 12,900 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 Knox
Since 1950, NOAA has recorded 39 tornadoes within 25 miles of Knox, 10 of them EF2/F2 or stronger. Most came in May and June. The strongest was an F4 on May 31, 1985, which passed about 14 miles north of town and caused 16 deaths. The most recent was an EF0 on June 9, 2025, which touched down about 13 miles east-southeast of town.
Hail: 115 reports of 1-inch or larger hail within 25 miles since 1955, 5 of them 2 inches or more; the largest was 2.75-inch hail on May 28, 2019.
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 Knox'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.
Knox radar FAQ
Where is the nearest weather radar to Knox, PA?
KPBZ (Pittsburgh, PA), about 60 miles southwest. KCCX (State College, PA) is 83 miles away and also covers the area.
Does radar show snow in Knox?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Knox the lowest scan from KPBZ is about 4,600 ft up.
Is TALON's radar for Knox 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 Knox, follow it right away — see watch vs. warning.
Radar for nearby towns
- Clarion, PA radar 8 mi
- Oil City, PA radar 16 mi
- Franklin, PA radar 18 mi
- Sugarcreek, PA radar 21 mi
- Brookville, PA radar 24 mi
- Titusville, PA radar 28 mi
- Kittanning, PA radar 28 mi
- West Kittanning, PA radar 29 mi
- Grove City, PA radar 29 mi
- Slippery Rock, PA radar 29 mi