“Report from mPING: Grapefruit- (3.75 in.). (OUN)”
— NOAA / SPC storm report
Hail in South Haven · Apr 23, 2026
NEXRAD logged 20 hail signatures up to 2.5"; the estimated-size surface reached 1.5" aloft. At 2.5" — baseball — this is a severe hail signal associated with roof damage. Open it on the live map to see the swath over the streets.
Convective day · Apr 23, 2026 · noon–noon UTC
Severity
The most severe storm South Haven has seen in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Peak hail signal
- 63 /100
- Homes exposed
- 51 /100
- Ground truth
- 17 /100
Largest radar-indicated size — a signal of damage potential, not confirmation.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
Evidence / storm surfaces
How South Haven saw the hail — from two instruments
Each storm gets two readings: the radar signatures NEXRAD recorded as the cells passed overhead, and a modeled estimate of hail size in the air. They are independent surfaces, so a mismatch between them is expected — and worth reading.
Radar signature field The point detections NEXRAD recorded overhead. Each signature marks where the radar saw hail aloft — it is a detection, not a stone measured on the ground.
Estimated size field Radar-estimated hail size over the swath. The model reports the biggest stone the storm could sustain in the air; what actually fell may have been smaller.
The storm in context
Where Apr 23, 2026 sits in South Haven's hail record.
This was South Haven's 5th recorded hail day, arriving 6 days after the Apr 17, 2026 storm. By severity it ranks 1st of the 17 storms we have logged here. Radar put the day's largest stone over South Haven at 2.5" — the largest NEXRAD radar signature.
The Apr 23, 2026 convective day was bigger than South Haven: the same system put hail over 703 other tracked cities, 147 of them in Kansas. Nearest: Braman (7 miles south, up to 2.5"); Geuda Springs (9 miles northeast, up to 2.5"); Blackwell (14 miles south, up to 1").
These maps are stills. In the app this date is one of 17 South Haven storm dates on a live map — both surfaces, the reports, and a replay — and the same map is where you draw the swath. This page rebuilds nightly.
Ground reports
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.
Hail reports
1 reportStorm forensics
How the storm moved
Read from the arrival times and locations of the NOAA ground reports, not a radar-measured storm track.
Reports came from Braman — beyond South Haven itself.
Severe hail signal
What 2.5" hail means for South Haven roofs.
Two-inch-plus hail is capable of puncturing shingles, breaking skylights or windows, and heavily denting soft materials. The strongest radar bands warrant prompt inspection, but neither the signal nor the footprint confirms damage at a specific address.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
Potential roof exposure
$4.3M
Potential roof exposure — 357 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 2 jobs
- Illustrative work
- ~$30K
Close just 0.5% of the 357 homes in this footprint at the average $15,000 roof job. Illustrative math, not a projection — your results depend on your outreach and how the market responds.
Claim window
April 2028
Claims from this storm can typically be filed until around April 2028 — the window to reach these homeowners while it's still open. Deadlines vary by policy and state.
Names and phones for every home in the footprint: at most $75 on top of the $150 plan.
South Haven hail history
Other storms in South Haven.
Estimated-size surface Aug 21, 2026
0.5"
Estimated-size surface Jul 11, 2026
1.75"
Estimated-size surface Jul 4, 2026
2.5"
Estimated-size surface Jun 25, 2026
0.5"
Estimated-size surface Jun 21, 2026
1.25"
Estimated-size surface Jun 20, 2026
0.75"
Estimated-size surface Jun 18, 2026
1"
Estimated-size surface Jun 13, 2026
1.5"
Estimated-size surface Jun 4, 2026
1.5"
Estimated-size surface May 30, 2026
1"
NEXRAD surface May 29, 2026
0.75"
Estimated-size surface May 18, 2026
1.5"
Estimated-size surface Apr 17, 2026
2"
Estimated-size surface Apr 3, 2026
1"
Estimated-size surface Mar 10, 2026
0.5"
NEXRAD surface Mar 5, 2026
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