Alton, IN Live Doppler Radar

Live radar for Alton, Crawford County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.

What weather hits Alton?

Since 1996, the National Weather Service has logged damaging thunderstorm winds on 121 days in the Crawford forecast zone and Crawford County — the most common reported hazard around Alton, mostly in July and June. Next come flash flooding (41 days) and heavy snow & winter storms (31 days).

HazardDays reportedMost recentWorst on record
Damaging thunderstorm winds121Apr 2026Jul 8, 2016 · $35,000 damage
Flash flooding41Jun 2026Jul 1, 2015 · $10,000 damage
Heavy snow & winter storms31Jan 2026Dec 22, 2004 · $80,000 damage
Flooding14Apr 2017Apr 29, 2017 · $4.0 million damage
High winds5Mar 2023Apr 2, 2016 · $5,000 damage
Ice storms & sleet5Feb 2022—
Blizzards1Mar 2018—
Lightning casualties & damage1Jul 2015Jul 12, 2015 · $300,000 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 Crawford forecast zone and Crawford County; damage is as reported, not adjusted for inflation.

Which radars cover Alton?

The closest NEXRAD Doppler radar is KLVX (Louisville, KY), about 28 miles east-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.

RadarDistanceLowest beam over AltonView
KLVX
Louisville, KY
28 mi east-southeast1,700 ftExcellent — the lowest scan sees close to the ground
KVWX
Evansville, IN
72 mi west5,900 ftGood — most storms and steady rain or snow show clearly
KHPX
Fort Campbell, KY
107 mi south-southwest10,600 ftLimited — 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 Alton

Since 1950, NOAA has recorded 73 tornadoes within 25 miles of Alton, 16 of them EF2/F2 or stronger. Most came in April and May. The strongest was an F5 on April 3, 1974, which passed about 15 miles southeast of town and caused 31 deaths. The most recent was an EF0 on December 28, 2025, which touched down about 13 miles east of town.

Hail: 253 reports of 1-inch or larger hail within 25 miles since 1955, 15 of them 2 inches or more; the largest was 2.75-inch hail on May 9, 2023.

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 Alton'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.

Alton radar FAQ

Where is the nearest weather radar to Alton, IN?

KLVX (Louisville, KY), about 28 miles east-southeast. KVWX (Evansville, IN) is 72 miles away and also covers the area.

Does radar show snow in Alton?

Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Alton the lowest scan from KLVX is about 1,700 ft up.

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

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