Alto, WI Live Doppler Radar

Live radar for Alto, Fond du Lac County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.

Open live radar for Alto What TALON shows

What weather hits Alto?

Since 1996, the National Weather Service has logged damaging thunderstorm winds on 103 days in the Fond Du Lac forecast zone and Fond du Lac County — the most common reported hazard around Alto, mostly in July and June. Next come heavy snow & winter storms (65 days) and excessive heat (40 days).

Hazard	Days reported	Most recent	Worst on record
Damaging thunderstorm winds	103	Jun 2026	Jul 28, 2021 · 1 death · $23,000 damage
Heavy snow & winter storms	65	Nov 2025	Mar 9, 2023 · 1 death
Excessive heat	40	Jun 2026	Jul 15, 2012 · 1 death
Extreme cold & wind chill	36	Jan 2026	Jan 1, 2018 · 1 death
Lightning casualties & damage	19	Jul 2018	Oct 2, 2006 · $200,000 damage
Flooding	13	Jul 2025	Jun 1, 2004 · $67 million damage
High winds	11	Mar 2026	Nov 10, 1998 · $700,000 damage
Flash flooding	11	Jun 2024	Jun 12, 2008 · $17 million damage

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 Fond Du Lac forecast zone and Fond du Lac County; damage is as reported, not adjusted for inflation.

Which radars cover Alto?

The closest NEXRAD Doppler radar is KMKX (Milwaukee/Sullivan, WI), about 50 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 Alto	View
KMKX Milwaukee/Sullivan, WI	50 mi south-southeast	3,500 ft	Good — most storms and steady rain or snow show clearly
KGRB Green Bay, WI	67 mi north-northeast	5,300 ft	Good — most storms and steady rain or snow show clearly
KARX La Crosse, WI	120 mi west	12,800 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 Alto

Since 1950, NOAA has recorded 149 tornadoes within 25 miles of Alto, 37 of them EF2/F2 or stronger. Most came in June and July. The strongest was an F5 on July 18, 1996, which passed about 9 miles east-northeast of town. The most recent was an EF0 on July 16, 2025, which touched down about 10 miles south of town.

Hail: 206 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 September 7, 2021.

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 Alto'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.

Alto radar FAQ

Where is the nearest weather radar to Alto, WI?

KMKX (Milwaukee/Sullivan, WI), about 50 miles south-southeast. KGRB (Green Bay, WI) is 67 miles away and also covers the area.

Does radar show snow in Alto?

Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Alto the lowest scan from KMKX is about 3,500 ft up.

Is TALON's radar for Alto 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 Alto, follow it right away — see watch vs. warning.

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