Hail in La Harpe · May 4, 2026
NEXRAD logged 0 hail signatures up to 1.75"; the estimated-size surface reached 1.25" aloft. Open it on the live map to see the swath over the streets.
7-day free trial in the iPhone app. No card required to start.
For iPhone. Android coming soon.
Web trial: 7 days free. Card required. $150/month after the trial unless cancelled.
Convective day · May 4, 2026 · noon–noon UTC
Severity
The most severe storm La Harpe 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
- 44 /100
- Homes exposed
- 66 /100
- Ground truth
- 0 /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 La Harpe 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 May 4, 2026 sits in La Harpe's hail record.
This was La Harpe's 5th recorded hail day, arriving 17 days after the Apr 17, 2026 storm. By severity it ranks 1st of the 12 storms we have logged here. Radar put the day's largest stone over La Harpe at 1.75" — the largest NEXRAD radar signature.
The May 4, 2026 convective day was bigger than La Harpe: the same system put hail over 428 other tracked cities, 239 of them in Illinois. Nearest: Lomax (9 miles northwest, up to 1.75"); Dallas City (10 miles west, up to 1.75"); Good Hope (10 miles east, up to 1").
These maps are stills. In the app this date is one of 12 La Harpe 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.
The National Weather Service logged no spotter reports for this storm over La Harpe. That absence is ordinary — filing a report takes a person on the spot who saw the hail and phoned it in. What stands as the record for this date is the radar above, which caught the storm regardless.
High damage potential
What 1.75" hail means for La Harpe roofs.
Hail around an inch and a half is capable of cracking shingles, stripping granules, and denting gutters, vents, and siding. Risk is usually greatest near the strongest radar signal, but property-level damage still requires an on-site inspection.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
Potential roof exposure
$25M
Potential roof exposure — 2,099 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 10 jobs
- Illustrative work
- ~$150K
Close just 0.5% of the 2,099 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
May 2028
Claims from this storm can typically be filed until around May 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 $441 on top of the $150 plan.
La Harpe hail history
Other storms in La Harpe.
Estimated-size surface Aug 19, 2026
1.25"
Estimated-size surface Aug 14, 2026
0.5"
Estimated-size surface Aug 12, 2026
0.5"
Estimated-size surface Jul 20, 2026
0.75"
Estimated-size surface Jun 17, 2026
0.5"
Estimated-size surface Jun 11, 2026
1.25"
Estimated-size surface Jun 10, 2026
0.5"
Estimated-size surface Apr 17, 2026
1"
Estimated-size surface Apr 2, 2026
1"
Estimated-size surface Mar 26, 2026
1"
NEXRAD surface Mar 15, 2026
0.75"The next storm won’t wait for you.
Set your territory and alerts today. When hail hits, use Overview to choose your streets and get moving.
7-day free trial in the iPhone app. No card required to start.
For iPhone. Android coming soon.
Web trial: 7 days free. Card required. $150/month after the trial unless cancelled.