Hail in Marengo · Apr 14, 2026
The estimated-size surface reached 0.75" aloft; NEXRAD logged no point detections over Marengo that day. Open it on the live map to see the swath over the streets.
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Convective day · Apr 14, 2026 · noon–noon UTC
Severity
The 5th most severe storm Marengo 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
- 19 /100
- Homes exposed
- 47 /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 Marengo saw the hail — from two instruments
Two instruments, one storm: NEXRAD logs the point signatures it detected overhead, while the estimated-size surface models how large the hail aloft could have grown. Agreement between them is not guaranteed — the gaps are where the model ran ahead of, or behind, the detections.
Estimated size field Radar-estimated maximum hail size across the swath, modeled from radar aloft. It reflects the biggest stone the storm could support, which may differ from what actually fell.
Only the radar-estimated size surface resolved for Apr 14, 2026 — this storm produced no NEXRAD point detections over Marengo, so there is one map to show, not two.
The storm in context
Where Apr 14, 2026 sits in Marengo's hail record.
This was Marengo's 2nd recorded hail day, arriving 15 days after the Mar 30, 2026 storm. By severity it ranks 5th of the 10 storms we have logged here. Radar put the day's largest stone over Marengo at 0.75" — radar-estimated size aloft.
The Apr 14, 2026 convective day was bigger than Marengo: the same system put hail over 476 other tracked cities, 143 of them in Iowa. Nearest: Hartwick (8 miles northwest, up to 1"); Blairstown (11 miles north, up to 0.75"); Luzerne (11 miles north, up to 1").
These maps are stills. In the app this date is one of 10 Marengo 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.
For this storm over Marengo, 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.
Near the severe threshold
What 0.75" hail means for Marengo roofs.
A signal this size sits near the National Weather Service severe threshold. Aging shingles and soft metals such as vents, flashing, and gutters may be more vulnerable; roof age, wind, and material condition all matter, and only an inspection can confirm damage.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
Potential roof exposure
$2.8M
Potential roof exposure — 236 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 1 job
- Illustrative work
- ~$15K
Close just 0.5% of the 236 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 $50 on top of the $150 plan.
Marengo hail history
Other storms in Marengo.
Estimated-size surface Aug 11, 2026
1.5"
Estimated-size surface Jul 10, 2026
0.75"
Estimated-size surface Jul 3, 2026
1"
Estimated-size surface Jun 16, 2026
0.5"
Estimated-size surface Jun 11, 2026
0.5"
Estimated-size surface May 18, 2026
0.5"
Estimated-size surface Apr 23, 2026
Estimated-size surface Apr 17, 2026
1.25"
Estimated-size surface Mar 30, 2026
1"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.
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Web trial: 7 days free. Card required. $150/month after the trial unless cancelled.