Harper, IA Live Doppler Radar
Live radar for Harper, Keokuk County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Harper?
Since 1996, the National Weather Service has logged heavy snow or a winter storm on 72 days in the Keokuk forecast zone and Keokuk County — the most common reported hazard around Harper, mostly in January and December. Next come damaging thunderstorm winds (61 days) and flooding (24 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Heavy snow & winter storms | 72 | Nov 2025 | Jan 6, 2005 · $10,000 damage |
| Damaging thunderstorm winds | 61 | Jun 2026 | Aug 3, 2010 · $100,000 damage |
| Flooding | 24 | Mar 2019 | Jun 1, 2008 · $570,000 damage |
| Flash flooding | 15 | Jul 2024 | Jun 15, 2010 · $100,000 damage |
| Extreme cold & wind chill | 12 | Jan 2019 | — |
| Ice storms & sleet | 9 | Dec 2024 | Feb 24, 2007 · $291,000 damage |
| Blizzards | 8 | Mar 2026 | — |
| High winds | 7 | Oct 2008 | Apr 6, 1997 · $100,000 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 Keokuk forecast zone and Keokuk County; damage is as reported, not adjusted for inflation.
Which radars cover Harper?
The closest NEXRAD Doppler radar is KDVN (Quad Cities, IA), about 78 miles east-northeast. 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 Harper | View |
|---|---|---|---|
| KDVN Quad Cities, IA | 78 mi east-northeast | 6,600 ft | Fair — the beam can pass over shallow snow and low-level rotation |
| KDMX Des Moines, IA | 90 mi west-northwest | 8,200 ft | Fair — the beam can pass over shallow snow and low-level rotation |
| KILX Lincoln, IL | 165 mi east-southeast | 21,200 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 Harper
Since 1950, NOAA has recorded 99 tornadoes within 25 miles of Harper, 23 of them EF2/F2 or stronger. Most came in May and April. The strongest was an F4 on June 7, 1984, which passed about 6 miles northwest of town and caused 3 deaths. The most recent was an EF1 on May 24, 2024, which passed about 12 miles west-northwest of town.
Hail: 170 reports of 1-inch or larger hail within 25 miles since 1955, 12 of them 2 inches or more; the largest was 4.50-inch hail on August 28, 1990.
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 Harper'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.
Harper radar FAQ
Where is the nearest weather radar to Harper, IA?
KDVN (Quad Cities, IA), about 78 miles east-northeast. KDMX (Des Moines, IA) is 90 miles away and also covers the area.
Does radar show snow in Harper?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Harper the lowest scan from KDVN is about 6,600 ft up, so light snow from shallow clouds can be under-shown — check NWS winter alerts too.
Is TALON's radar for Harper 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 Harper, follow it right away — see watch vs. warning.
Radar for nearby towns
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