Hannibal, MO Live Doppler Radar
Live radar for Hannibal, Marion County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Hannibal?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 73 days in the Marion forecast zone and Marion County — the most common reported hazard around Hannibal, mostly in June and July. Next come heavy snow & winter storms (43 days) and excessive heat (43 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 73 | Aug 2025 | Feb 27, 2011 · $100,000 damage |
| Heavy snow & winter storms | 43 | Nov 2025 | — |
| Excessive heat | 43 | Aug 2023 | — |
| Flash flooding | 19 | Jul 2021 | Jul 20, 2010 · $200,000 damage |
| Flooding | 17 | Jun 2026 | Jun 3, 2008 · $20 million damage |
| High winds | 6 | Nov 2019 | — |
| Ice storms & sleet | 6 | Jan 2017 | — |
| Extreme cold & wind chill | 6 | 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 Marion forecast zone and Marion County; damage is as reported, not adjusted for inflation.
How much snow does Hannibal get?
A normal year brings about 12 inches of snow to Hannibal, based on NOAA's 1991–2020 climate normals for the Palmyra weather station 7.5 miles away. The snowiest month is usually January (3.4 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 0.0 | 0.7 | 3.1 | 3.4 | 3.1 | 1.6 | 0.6 | 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 Hannibal?
The closest NEXRAD Doppler radar is KLSX (St. Louis, MO), about 80 miles south-southeast. 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 Hannibal | View |
|---|---|---|---|
| KLSX St. Louis, MO | 80 mi south-southeast | 6,800 ft | Fair — the beam can pass over shallow snow and low-level rotation |
| KILX Lincoln, IL | 113 mi east-northeast | 11,600 ft | Limited — the beam overshoots the lowest part of storms |
| KDVN Quad Cities, IA | 138 mi north-northeast | 15,900 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 Hannibal
Since 1950, NOAA has recorded 69 tornadoes within 25 miles of Hannibal, 12 of them EF2/F2 or stronger. Most came in June and May. The strongest was an F4 on March 12, 2006, which passed about 18 miles west-southwest of town. The most recent was an EF0 on April 20, 2025, which touched down about 19 miles south of town.
Hail: 243 reports of 1-inch or larger hail within 25 miles since 1955, 23 of them 2 inches or more; the largest was 4.50-inch hail on May 11, 2016.
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 Hannibal'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.
Hannibal radar FAQ
Where is the nearest weather radar to Hannibal, MO?
KLSX (St. Louis, MO), about 80 miles south-southeast. KILX (Lincoln, IL) is 113 miles away and also covers the area.
Does radar show snow in Hannibal?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Hannibal the lowest scan from KLSX is about 6,800 ft up, so light snow from shallow clouds can be under-shown — check NWS winter alerts too.
Is TALON's radar for Hannibal 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 Hannibal, follow it right away — see watch vs. warning.
Radar for nearby towns
- Palmyra, MO radar 9 mi
- Monroe City, MO radar 18 mi
- Louisiana, MO radar 26 mi
- Bowling Green, MO radar 27 mi
- Vandalia, MO radar 28 mi
- Canton, MO radar 30 mi
- Shelbina, MO radar 34 mi
- Paris, MO radar 37 mi
- Wellsville, MO radar 45 mi
- Mexico, MO radar 46 mi