Hail size 1.75"
4 N Kamrar Hamilton County
“(DMX)”
— NOAA / SPC storm report
/ Storm field report · Wright
Hail in Blairsburg · Jul 20, 2026
The estimated-size surface reached 2" aloft; NEXRAD logged no point detections over Blairsburg that day. At 2" — tennis ball — this is a severe hail signal associated with roof damage. Open it on the live map to see the swath over the streets.
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Peak hail signal 2" ≈ tennis ball · radar-estimated size aloft
Homes in the hail footprint 1,241
Ground reports 1 1 hail
Radar surfaces 1 Estimated size only
Convective day · Jul 20, 2026 · noon–noon UTC
Severity
The most severe storm Blairsburg has seen in the last 12 months
Composite score · 4.8 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
4.8 /10
- Peak hail signal
- 50 /100
- Homes exposed
- 62 /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 Blairsburg saw the hail — from two instruments
Jul 20, 2026 · Blairsburg, IA
We map this storm two ways: the NEXRAD radar signatures the storm produced overhead, and the radar-estimated size of the hail in the air. The two surfaces don’t have to match — where they diverge is where estimated size aloft ran ahead of, or behind, what the signatures caught.
Radar-estimated hail size Surface resolved
Estimated size field Maximum hail size as estimated from radar aloft. Treat it as the storm's ceiling — the largest supportable stone — rather than a ground measurement.
Max size
2"
Only the radar-estimated size surface resolved for Jul 20, 2026 — this storm produced no NEXRAD point detections over Blairsburg, so there is one map to show, not two.
The storm in context
Where Jul 20, 2026 sits in Blairsburg's hail record.
This was Blairsburg's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 1st of the 2 storms we have logged here. Radar put the day's largest stone over Blairsburg at 2" — radar-estimated size aloft.
The Jul 20, 2026 convective day was bigger than Blairsburg: the same system put hail over 553 other tracked cities, 178 of them in Iowa. Nearest: Clarion (9 miles northwest, up to 1.5"); Williams (9 miles southeast, up to 0.5"); Eagle Grove (10 miles west, up to 1.25").
These maps are stills. In the app this date is one of 2 Blairsburg 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
1 report filed with the NWS
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
Timing and place names from NOAA ground reports
Read from the arrival times and locations of the NOAA ground reports, not a radar-measured storm track.
Reports came from Kamrar — beyond Blairsburg itself.
Severe hail signal
What 2" hail means for Blairsburg 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.
1,241 homes × $12,000 avg. claim
Potential roof exposure
$15M
Potential roof exposure — 1,241 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 6 jobs
- Illustrative work
- ~$90K
Close just 0.5% of the 1,241 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
July 2028
Claims from this storm can typically be filed until around July 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 $261 on top of the $150 plan.
Blairsburg hail history
Other storms in Blairsburg.
2 recorded storm days in Blairsburg, IA
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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A storm day here is a convective day — it runs from noon to noon
UTC, so late-night hail is grouped with the afternoon storm that
spawned it rather than split across two calendar dates. Ground
reports are public-domain observations from the NOAA Storm
Prediction Center. Radar tells you where to look. Only an inspection confirms damage at an address. Last updated Aug 11, 2026.