Hail in Red Oak Apr 23, 2026
Both radar surfaces caught this storm: NEXRAD logged 6 hail signatures up to 1", and the radar-estimated size reached 0.5" aloft.
1"
≈ quarter · the largest NEXRAD radar signature199
0
none filedThe 12th most severe storm Red Oak has seen in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Hail size
- 25 /100
- Homes exposed
- 46 /100
- Ground truth
- 0 /100
Largest hailstone — the top predictor of roof damage.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
How Red Oak saw the hail — from two instruments
The maps here read the same storm from two angles — point detections from NEXRAD, and modeled hail size aloft. Where the two disagree is informative: it marks where estimated size outran the signatures, or trailed them.
Where NEXRAD flagged hail as the storm passed — point signatures from the radar, which indicate hail overhead rather than confirm what landed.
The modeled maximum hail size across the swath, derived from radar aloft — the largest stone the storm could have supported, which is not necessarily what reached the ground.
Where Apr 23, 2026 sits in Red Oak's hail record
This was Red Oak's 3rd recorded hail day, arriving 9 days after the Apr 14, 2026 storm. By severity it ranks 12th of the 14 storms we have logged here. Radar put the day's largest stone over Red Oak at 1" — the largest NEXRAD radar signature.
The Apr 23, 2026 convective day was bigger than Red Oak: the same system put hail over 703 other tracked cities, 252 of them in Iowa. Nearest: Imogene (5 miles west, up to 1.75"); Emerson (9 miles northwest, up to 2"); Shenandoah (9 miles southwest, up to 1.75").
These maps are stills from Red Oak's Apr 23, 2026 storm. In the Overview app the same surfaces are live — radar updating in real time, radar-estimated hail size as it forms, and NWS spotter reports pinned where they're filed — with a radar replay you can scrub back over any past day.
What people on the ground reported
These are storm reports filed with the National Weather Service and released through the NOAA Storm Prediction Center — public-domain observations from spotters, the public, and NWS surveys. We quote each one exactly as filed.
For this storm over Red Oak, the NWS report log is empty — a common outcome, since ground reports only happen when someone witnesses the hail and takes the time to call it in. The detection record for the date lives in the radar maps above.
What 1" hail means for Red Oak roofs
Quarter-size and larger hail is where asphalt shingle damage starts in earnest: bruised mats and granule loss that homeowners can't see from the ground. Most people inside the footprint won't know their roof was hit until someone inspects it.
$2.4M
Potential roof exposure — 199 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.Track hail over Red Oak on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Red Oak storm history — this Apr 23, 2026 storm included — sits underneath. When you're ready, draw this storm's footprint and pull highly accurate homeowner contact information for every address inside it.
Highly accurate contact information starting at $0.23 per address — every contact included. Digital leads cost $15–$40. Start with a 7-day free trial — no credit card required. See pricing
14 recorded storm days in Red Oak, IA
Other storms in Red Oak
Jul 2, 2026
0.5"
Jun 30, 2026
1"
Jun 13, 2026
1"
Jun 10, 2026
1.75"
Jun 6, 2026
1.75"
Jun 5, 2026
1"
May 31, 2026
1.75"
May 18, 2026
1"
May 17, 2026
1"
May 16, 2026
3.75"
May 15, 2026
2.25"
Apr 14, 2026
0.75"
Mar 6, 2026
1"