Tennyson, WI Live Doppler Radar
Live radar for Tennyson, Grant County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Tennyson?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 104 days in the Grant forecast zone and Grant County — the most common reported hazard around Tennyson, mostly in June and July. Next come heavy snow & winter storms (68 days) and flooding (48 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 104 | Jun 2026 | Jul 20, 2006 · 1 death · $1,000 damage |
| Heavy snow & winter storms | 68 | Mar 2026 | Jan 20, 2012 · $10,000 damage |
| Flooding | 48 | Apr 2026 | May 1, 2001 · $2.2 million damage |
| Flash flooding | 46 | Aug 2025 | Jul 21, 2017 · $8.5 million damage |
| Extreme cold & wind chill | 17 | Jan 2026 | — |
| Excessive heat | 13 | Jun 2026 | Jul 17, 2011 · $25,000 damage |
| High winds | 7 | Mar 2026 | Nov 10, 1998 · $250,000 damage |
| Blizzards | 7 | Jan 2014 | — |
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 Grant forecast zone and Grant County; damage is as reported, not adjusted for inflation.
How much snow does Tennyson get?
A normal year brings about 36 inches of snow to Tennyson, based on NOAA's 1991–2020 climate normals for the Dubuque L&D 11 weather station 10.6 miles away. The snowiest month is usually January (11.7 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 0.1 | 1.2 | 9.9 | 11.7 | 8.6 | 3.7 | 0.9 | 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 Tennyson?
The closest NEXRAD Doppler radar is KDVN (Quad Cities, IA), about 75 miles south. 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 Tennyson | View |
|---|---|---|---|
| KDVN Quad Cities, IA | 75 mi south | 6,200 ft | Fair — the beam can pass over shallow snow and low-level rotation |
| KARX La Crosse, WI | 82 mi north-northwest | 7,200 ft | Fair — the beam can pass over shallow snow and low-level rotation |
| KMKX Milwaukee/Sullivan, WI | 110 mi east | 11,100 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 Tennyson
Since 1950, NOAA has recorded 104 tornadoes within 25 miles of Tennyson, 26 of them EF2/F2 or stronger. Most came in June and May. The strongest was an F3 on May 30, 1985, which passed about 19 miles north-northwest of town and caused 2 deaths. The most recent was an EF1 on July 15, 2024, which touched down about 9 miles southeast of town.
Hail: 302 reports of 1-inch or larger hail within 25 miles since 1955, 43 of them 2 inches or more; the largest was 4.50-inch hail on August 19, 1994.
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 Tennyson'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.
Tennyson radar FAQ
Where is the nearest weather radar to Tennyson, WI?
KDVN (Quad Cities, IA), about 75 miles south. KARX (La Crosse, WI) is 82 miles away and also covers the area.
Does radar show snow in Tennyson?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Tennyson the lowest scan from KDVN is about 6,200 ft up, so light snow from shallow clouds can be under-shown — check NWS winter alerts too.
Is TALON's radar for Tennyson 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 Tennyson, follow it right away — see watch vs. warning.
Radar for nearby towns
- Dickeyville, WI radar 6 mi
- Lancaster, WI radar 11 mi
- Platteville, WI radar 11 mi
- Cuba City, WI radar 14 mi
- Hazel Green, WI radar 17 mi
- Belmont, WI radar 18 mi
- Fennimore, WI radar 20 mi
- Shullsburg, WI radar 24 mi
- Mineral Point, WI radar 28 mi
- Darlington, WI radar 29 mi