Savanna, IL Live Doppler Radar
Live radar for Savanna, Carroll County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Savanna?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 95 days in the Carroll forecast zone and Carroll County — the most common reported hazard around Savanna, mostly in June and July. Next come heavy snow & winter storms (82 days) and flash flooding (25 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 95 | Apr 2026 | Jun 23, 1996 · $1.0 million damage |
| Heavy snow & winter storms | 82 | Nov 2025 | — |
| Flash flooding | 25 | Apr 2026 | Jul 24, 2010 · $10 million damage |
| Flooding | 18 | Jul 2024 | Apr 18, 2011 · $250,000 damage |
| Extreme cold & wind chill | 17 | Jan 2019 | — |
| High winds | 12 | Feb 2019 | May 4, 2003 · $1.0 million damage |
| Ice storms & sleet | 8 | Feb 2023 | — |
| Blizzards | 5 | Mar 2026 | — |
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 Carroll forecast zone and Carroll County; damage is as reported, not adjusted for inflation.
How much snow does Savanna get?
A normal year brings about 33 inches of snow to Savanna, based on NOAA's 1991–2020 climate normals for the Mt Carroll weather station 7.9 miles away. The snowiest month is usually January (10.2 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 0.4 | 1.7 | 8.8 | 10.2 | 7.9 | 3.6 | 0.8 | 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 Savanna?
The closest NEXRAD Doppler radar is KDVN (Quad Cities, IA), about 40 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 Savanna | View |
|---|---|---|---|
| KDVN Quad Cities, IA | 40 mi southwest | 2,700 ft | Excellent — the lowest scan sees close to the ground |
| KMKX Milwaukee/Sullivan, WI | 101 mi northeast | 9,700 ft | Fair — the beam can pass over shallow snow and low-level rotation |
| KLOT Chicago, IL | 111 mi east-southeast | 11,300 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 Savanna
Since 1950, NOAA has recorded 92 tornadoes within 25 miles of Savanna, 19 of them EF2/F2 or stronger. Most came in June and May. The strongest was an F4 on April 11, 1965, which passed about 18 miles west-northwest of town and caused 1 death. The most recent was an EF1 on July 15, 2024, which passed about 11 miles north-northeast of town.
Hail: 165 reports of 1-inch or larger hail within 25 miles since 1955, 18 of them 2 inches or more; the largest was 3.00-inch hail on June 25, 2024.
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 Savanna'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.
Savanna radar FAQ
Where is the nearest weather radar to Savanna, IL?
KDVN (Quad Cities, IA), about 40 miles southwest. KMKX (Milwaukee/Sullivan, WI) is 101 miles away and also covers the area.
Does radar show snow in Savanna?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Savanna the lowest scan from KDVN is about 2,700 ft up.
Is TALON's radar for Savanna 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 Savanna, follow it right away — see watch vs. warning.
Radar for nearby towns
- Mount Carroll, IL radar 8 mi
- Thomson, IL radar 8 mi
- Lanark, IL radar 16 mi
- Fulton, IL radar 16 mi
- Stockton, IL radar 19 mi
- Morrison, IL radar 22 mi
- Lena, IL radar 26 mi
- Galena, IL radar 27 mi
- Warren, IL radar 29 mi
- Forreston, IL radar 29 mi