Hail in Spirit Lake · Apr 13, 2026
NEXRAD logged 12 hail signatures up to 1.25"; the estimated-size surface reached 0.75" aloft. Open it on the live map to see the swath over the streets.
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Convective day · Apr 13, 2026 · noon–noon UTC
Severity
The 8th most severe storm Spirit Lake 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
- 31 /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 Spirit Lake 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 13, 2026 sits in Spirit Lake's hail record.
This was Spirit Lake's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 8th of the 18 storms we have logged here. Radar put the day's largest stone over Spirit Lake at 1.25" — the largest NEXRAD radar signature.
The Apr 13, 2026 convective day was bigger than Spirit Lake: the same system put hail over 467 other tracked cities, 64 of them in Iowa. Nearest: Estherville (13 miles east, up to 2"); Lake Park (13 miles west, up to 1.5"); Terril (13 miles southeast, up to 1").
These maps are stills. In the app this date is one of 18 Spirit Lake 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.
Nobody on the ground filed a report over Spirit Lake for this date, which says more about who was watching than about the storm: spotter reports only exist where there is an observer. The radar surfaces above carry the evidence for this one.
Damage-capable hail signal
What 1.25" hail means for Spirit Lake roofs.
Quarter-size and larger hail can bruise asphalt mats, remove granules, and dent exposed soft metal. The mapped footprint identifies an inspection priority area — it does not identify which individual roofs, if any, sustained damage.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
Potential roof exposure
$24M
Potential roof exposure — 2,025 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 2,025 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 $425 on top of the $150 plan.
Spirit Lake hail history
Other storms in Spirit Lake.
Estimated-size surface Sep 6, 2026
0.5"
Estimated-size surface Sep 3, 2026
0.5"
Estimated-size surface Aug 18, 2026
0.5"
Estimated-size surface Aug 9, 2026
0.5"
Estimated-size surface Aug 8, 2026
1.5"
Estimated-size surface Aug 7, 2026
0.5"
Estimated-size surface Jul 4, 2026
1"
Estimated-size surface Jul 2, 2026
2"
Estimated-size surface Jul 1, 2026
1.75"
Estimated-size surface Jun 30, 2026
1.25"
Estimated-size surface Jun 29, 2026
1"
Estimated-size surface Jun 27, 2026
0.5"
Estimated-size surface Jun 9, 2026
0.5"
Estimated-size surface May 25, 2026
1.75"
Estimated-size surface May 18, 2026
1.75"
Estimated-size surface May 17, 2026
1.75"
Estimated-size surface May 15, 2026
1.25"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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