Johnson Siding, SD Live Doppler Radar
Live radar for Johnson Siding, Pennington County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Johnson Siding?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 263 days in the Central Black Hills forecast zone and Pennington County — the most common reported hazard around Johnson Siding, mostly in July and June. Next come heavy snow & winter storms (130 days) and flooding (40 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 263 | Jun 2026 | Jul 20, 2002 · $1.0 million damage |
| Heavy snow & winter storms | 130 | Mar 2025 | Apr 18, 2006 · $500,000 damage |
| Flooding | 40 | Jun 2023 | May 21, 2019 · $2.0 million damage |
| Flash flooding | 31 | Jul 2022 | Jun 5, 2008 · $1.5 million damage |
| High winds | 19 | Nov 2024 | — |
| Lightning casualties & damage | 12 | Aug 2016 | Aug 3, 2011 · 1 death |
| Blizzards | 10 | Mar 2021 | Apr 18, 2000 · $1.5 million damage |
| Extreme cold & wind chill | 8 | 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 Central Black Hills forecast zone and Pennington County; damage is as reported, not adjusted for inflation.
How much snow does Johnson Siding get?
A normal year brings about 61 inches of snow to Johnson Siding, based on NOAA's 1991–2020 climate normals for the Pactola Dam weather station 2.7 miles away. The snowiest month is usually April (12.8 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 6.3 | 6.5 | 5.4 | 5.7 | 8.2 | 10.5 | 12.8 | 4.5 |
Normal snowfall in inches. TALON Pro compares this season's snow at your location with these normals as winter goes on.
Which radars cover Johnson Siding?
The closest NEXRAD Doppler radar is KUDX (Rapid City, SD), about 30 miles east. 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 Johnson Siding | View |
|---|---|---|---|
| KUDX Rapid City, SD | 30 mi east | 1,900 ft | Excellent — the lowest scan sees close to the ground |
| KLNX North Platte, NE | 206 mi southeast | 30,800 ft | Limited — the beam overshoots the lowest part of storms |
| KCYS Cheyenne, WY | 214 mi south-southwest | 32,800 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 Johnson Siding
Since 1950, NOAA has recorded 54 tornadoes within 25 miles of Johnson Siding, 10 of them EF2/F2 or stronger. Most came in June and May. The strongest was an F3 on May 11, 1991, which touched down about 13 miles northeast of town. The most recent was an EF0 on May 6, 2023, which touched down about 23 miles east-northeast of town.
Hail: 1,738 reports of 1-inch or larger hail within 25 miles since 1955, 252 of them 2 inches or more; the largest was 6.00-inch hail on June 22, 1968.
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 Johnson Siding'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.
Johnson Siding radar FAQ
Where is the nearest weather radar to Johnson Siding, SD?
KUDX (Rapid City, SD), about 30 miles east. KLNX (North Platte, NE) is 206 miles away and also covers the area.
Does radar show snow in Johnson Siding?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Johnson Siding the lowest scan from KUDX is about 1,900 ft up.
Is TALON's radar for Johnson Siding 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 Johnson Siding, follow it right away — see watch vs. warning.
Radar for nearby towns
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- Piedmont, SD radar 10 mi
- Rapid City, SD radar 11 mi
- Box Elder, SD radar 18 mi
- Sturgis, SD radar 23 mi
- Custer, SD radar 23 mi
- Lead, SD radar 25 mi
- Deadwood, SD radar 25 mi
- Spearfish, SD radar 34 mi
- Belle Fourche, SD radar 45 mi