Mercer, MO Live Doppler Radar
Live radar for Mercer, Mercer County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Mercer?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 38 days in the Mercer forecast zone and Mercer County — the most common reported hazard around Mercer, mostly in June and July. Next come heavy snow & winter storms (35 days) and excessive heat (14 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 38 | Sep 2025 | Apr 2, 2010 · $20,000 damage |
| Heavy snow & winter storms | 35 | Nov 2025 | Apr 10, 1997 · $500,000 damage |
| Excessive heat | 14 | Aug 2023 | — |
| Extreme cold & wind chill | 11 | Feb 2025 | — |
| Flash flooding | 10 | Aug 2023 | — |
| Ice storms & sleet | 7 | Jan 2017 | Dec 10, 2007 · $10,000 damage |
| Blizzards | 4 | Nov 2018 | — |
| High winds | 2 | Dec 2021 | — |
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 Mercer forecast zone and Mercer County; damage is as reported, not adjusted for inflation.
Which radars cover Mercer?
The closest NEXRAD Doppler radar is KDMX (Des Moines, IA), about 85 miles north. 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 Mercer | View |
|---|---|---|---|
| KDMX Des Moines, IA | 85 mi north | 7,500 ft | Fair — the beam can pass over shallow snow and low-level rotation |
| KEAX Kansas City, MO | 124 mi south-southwest | 13,400 ft | Limited — the beam overshoots the lowest part of storms |
| KOAX Omaha, NE | 158 mi west-northwest | 19,800 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 Mercer
Since 1950, NOAA has recorded 69 tornadoes within 25 miles of Mercer, 24 of them EF2/F2 or stronger. Most came in June and May. The strongest was an F4 on June 7, 1984, which passed about 10 miles northwest of town and caused 3 deaths. The most recent was an EF0 on April 27, 2024, which passed about 16 miles south of town.
Hail: 213 reports of 1-inch or larger hail within 25 miles since 1955, 27 of them 2 inches or more; the largest was 3.00-inch hail on May 5, 1971.
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 Mercer'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.
Mercer radar FAQ
Where is the nearest weather radar to Mercer, MO?
KDMX (Des Moines, IA), about 85 miles north. KEAX (Kansas City, MO) is 124 miles away and also covers the area.
Does radar show snow in Mercer?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Mercer the lowest scan from KDMX is about 7,500 ft up, so light snow from shallow clouds can be under-shown — check NWS winter alerts too.
Is TALON's radar for Mercer 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 Mercer, follow it right away — see watch vs. warning.
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