Oacoma, SD Live Doppler Radar
Live radar for Oacoma, Lyman County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Oacoma?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 135 days in the Lyman forecast zone and Lyman County — the most common reported hazard around Oacoma, mostly in July and June. Next come high winds (100 days) and heavy snow & winter storms (56 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 135 | Jun 2026 | — |
| High winds | 100 | Jun 2026 | — |
| Heavy snow & winter storms | 56 | Apr 2024 | — |
| Blizzards | 36 | Dec 2023 | — |
| Extreme cold & wind chill | 25 | Jan 2026 | — |
| Flooding | 25 | Feb 2024 | Jun 1, 2019 · $5.0 million damage |
| Excessive heat | 14 | Jul 2025 | — |
| Flash flooding | 11 | Aug 2025 | Jun 20, 2011 · 2 deaths |
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 Lyman forecast zone and Lyman County; damage is as reported, not adjusted for inflation.
How much snow does Oacoma get?
A normal year brings about 43 inches of snow to Oacoma, based on NOAA's 1991–2020 climate normals for the Chamberlain 5 S weather station 5.5 miles away. The snowiest month is usually February (8.0 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 1.4 | 5.1 | 7.5 | 7.3 | 8.0 | 7.2 | 6.8 | 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 Oacoma?
The closest NEXRAD Doppler radar is KABR (Aberdeen, SD), about 123 miles north-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 Oacoma | View |
|---|---|---|---|
| KABR Aberdeen, SD | 123 mi north-northeast | 13,300 ft | Limited — the beam overshoots the lowest part of storms |
| KFSD Sioux Falls, SD | 133 mi east | 14,900 ft | Limited — the beam overshoots the lowest part of storms |
| KLNX North Platte, NE | 142 mi south-southwest | 16,500 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 Oacoma
Since 1950, NOAA has recorded 64 tornadoes within 25 miles of Oacoma, 9 of them EF2/F2 or stronger. Most came in July and June. The strongest was an F3 on June 16, 1992, which touched down about 17 miles north of town. The most recent was an EF0 on July 15, 2025, which touched down about 5 miles north-northeast of town.
Hail: 235 reports of 1-inch or larger hail within 25 miles since 1955, 28 of them 2 inches or more; the largest was 4.00-inch hail on July 28, 1986.
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 Oacoma'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.
Oacoma radar FAQ
Where is the nearest weather radar to Oacoma, SD?
KABR (Aberdeen, SD), about 123 miles north-northeast. KFSD (Sioux Falls, SD) is 133 miles away and also covers the area.
Does radar show snow in Oacoma?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Oacoma the lowest scan from KABR is about 13,300 ft up, so light snow from shallow clouds can be under-shown — check NWS winter alerts too.
Is TALON's radar for Oacoma 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 Oacoma, follow it right away — see watch vs. warning.
Radar for nearby towns
- Chamberlain, SD radar 2 mi
- Winner, SD radar 38 mi
- Platte, SD radar 39 mi
- Gregory, SD radar 40 mi
- Miller, SD radar 53 mi
- Pierre, SD radar 62 mi