Sumner, MO Live Doppler Radar
Live radar for Sumner, Chariton County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Sumner?
Since 1996, the National Weather Service has logged river or areal flooding on 98 days in the Chariton forecast zone and Chariton County — the most common reported hazard around Sumner, mostly in May and April. Next come damaging thunderstorm winds (42 days) and heavy snow & winter storms (27 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Flooding | 98 | Jun 2020 | Jul 25, 2008 · $250,000 damage |
| Damaging thunderstorm winds | 42 | Jun 2025 | Jun 13, 2000 · $20,000 damage |
| Heavy snow & winter storms | 27 | Jan 2026 | — |
| Excessive heat | 16 | Aug 2023 | Jul 14, 2000 · 1 death |
| Flash flooding | 12 | Jun 2017 | — |
| Extreme cold & wind chill | 9 | Feb 2025 | — |
| Ice storms & sleet | 7 | Feb 2019 | Jan 30, 2002 · $200,000 damage |
| Blizzards | 2 | Nov 2018 | — |
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 Chariton forecast zone and Chariton County; damage is as reported, not adjusted for inflation.
How much snow does Sumner get?
A normal year brings about 14 inches of snow to Sumner, based on NOAA's 1991–2020 climate normals for the Sumner 3 Sw weather station 2.8 miles away. The snowiest month is usually January (4.4 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 0.0 | 0.4 | 4.1 | 4.4 | 3.2 | 1.4 | 0.2 | 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 Sumner?
The closest NEXRAD Doppler radar is KEAX (Kansas City, MO), about 80 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 Sumner | View |
|---|---|---|---|
| KEAX Kansas City, MO | 80 mi southwest | 6,900 ft | Fair — the beam can pass over shallow snow and low-level rotation |
| KDMX Des Moines, IA | 146 mi north | 17,300 ft | Limited — the beam overshoots the lowest part of storms |
| KLSX St. Louis, MO | 152 mi east-southeast | 18,600 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 Sumner
Since 1950, NOAA has recorded 45 tornadoes within 25 miles of Sumner, 12 of them EF2/F2 or stronger. Most came in May and June. The strongest was an F4 on April 21, 1967, which passed about 5 miles northeast of town. The most recent was a tornado of unknown strength on April 27, 2024, which touched down about 11 miles northeast of town.
Hail: 202 reports of 1-inch or larger hail within 25 miles since 1955, 34 of them 2 inches or more; the largest was 6.00-inch hail on May 24, 2004.
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 Sumner'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.
Sumner radar FAQ
Where is the nearest weather radar to Sumner, MO?
KEAX (Kansas City, MO), about 80 miles southwest. KDMX (Des Moines, IA) is 146 miles away and also covers the area.
Does radar show snow in Sumner?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Sumner the lowest scan from KEAX is about 6,900 ft up, so light snow from shallow clouds can be under-shown — check NWS winter alerts too.
Is TALON's radar for Sumner 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 Sumner, follow it right away — see watch vs. warning.
Radar for nearby towns
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