Byrnes Mill, MO Live Doppler Radar
Live radar for Byrnes Mill, Jefferson County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Byrnes Mill?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 111 days in the Jefferson forecast zone and Jefferson County — the most common reported hazard around Byrnes Mill, mostly in July and June. Next come excessive heat (64 days) and heavy snow & winter storms (47 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 111 | Apr 2026 | Aug 10, 2020 · 1 death |
| Excessive heat | 64 | Aug 2025 | Jul 14, 2006 · 1 death |
| Heavy snow & winter storms | 47 | Jan 2025 | — |
| Flash flooding | 38 | Apr 2025 | Jul 1, 2015 · 2 deaths · $4.0 million damage |
| Flooding | 15 | May 2017 | Apr 30, 2017 · 1 death |
| Ice storms & sleet | 7 | Feb 2022 | — |
| Lightning casualties & damage | 7 | Jun 2016 | Jun 25, 2016 · 1 death |
| High winds | 6 | Mar 2002 | — |
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 Jefferson forecast zone and Jefferson County; damage is as reported, not adjusted for inflation.
How much snow does Byrnes Mill get?
A normal year brings about 10 inches of snow to Byrnes Mill, based on NOAA's 1991–2020 climate normals for the Valley Park weather station 9.3 miles away. The snowiest month is usually January (4.1 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 0.0 | 0.5 | 1.7 | 4.1 | 2.8 | 1.0 | 0.1 | 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 Byrnes Mill?
The closest NEXRAD Doppler radar is KLSX (St. Louis, MO), about 19 miles north-northwest. 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 Byrnes Mill | View |
|---|---|---|---|
| KLSX St. Louis, MO | 19 mi north-northwest | 1,100 ft | Excellent — the lowest scan sees close to the ground |
| KILX Lincoln, IL | 135 mi north-northeast | 15,400 ft | Limited — the beam overshoots the lowest part of storms |
| KPAH Paducah, KY | 137 mi southeast | 15,600 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 Byrnes Mill
Since 1950, NOAA has recorded 152 tornadoes within 25 miles of Byrnes Mill, 30 of them EF2/F2 or stronger. Most came in May and April. The strongest was an F4 on February 10, 1959, which passed about 6 miles north-northwest of town and caused 21 deaths. The most recent was an EF1 on June 7, 2025, which passed about 23 miles south-southwest of town.
Hail: 953 reports of 1-inch or larger hail within 25 miles since 1955, 115 of them 2 inches or more; the largest was 4.50-inch hail on May 25, 2011.
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 Byrnes Mill'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.
Byrnes Mill radar FAQ
Where is the nearest weather radar to Byrnes Mill, MO?
KLSX (St. Louis, MO), about 19 miles north-northwest. KILX (Lincoln, IL) is 135 miles away and also covers the area.
Does radar show snow in Byrnes Mill?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Byrnes Mill the lowest scan from KLSX is about 1,100 ft up.
Is TALON's radar for Byrnes Mill 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 Byrnes Mill, follow it right away — see watch vs. warning.
Radar for nearby towns
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- Winchester, MO radar 11 mi
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