Tornado Rating unknown
4 S Kamrar Hamilton County
“Reports of Tornado on the ground. (DMX)”
— NOAA / SPC storm report
/ Storm field report · Hamilton
Hail in Kamrar · Jul 20, 2026
The estimated-size surface reached 2" aloft; NEXRAD logged no point detections over Kamrar 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.
A tornado was also reported to the National Weather Service during this storm. The ground reports below show where it was filed.
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Peak hail signal 2" ≈ tennis ball · radar-estimated size aloft
Homes in the hail footprint 1,132
Ground reports 2 1 hail · 1 tornado
Radar surfaces 1 Estimated size only
Convective day · Jul 20, 2026 · noon–noon UTC
Severity
The most severe storm Kamrar has seen in the last 12 months
Composite score · 5.3 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
5.3 /10
- Peak hail signal
- 50 /100
- Homes exposed
- 61 /100
- Ground truth
- 50 /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 Kamrar saw the hail — from two instruments
Jul 20, 2026 · Kamrar, IA
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-estimated hail size Surface resolved
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.
Max size
2"
Only the radar-estimated size surface resolved for Jul 20, 2026 — this storm produced no NEXRAD point detections over Kamrar, so there is one map to show, not two.
The storm in context
Where Jul 20, 2026 sits in Kamrar's hail record.
This was Kamrar's 3rd recorded hail day, arriving 18 days after the Jul 2, 2026 storm. By severity it ranks 1st of the 4 storms we have logged here. Radar put the day's largest stone over Kamrar at 2" — radar-estimated size aloft.
The Jul 20, 2026 convective day was bigger than Kamrar: the same system put hail over 553 other tracked cities, 178 of them in Iowa. Nearest: Jewell (7 miles south, up to 1.25"); Webster City (8 miles west, up to 1.75"); Ellsworth (9 miles southeast, up to 1.75").
These maps are stills. In the app this date is one of 4 Kamrar 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
2 reports 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.
Tornado reports
1 reportHail reports
1 report Hail size 1.75"
4 N Kamrar Hamilton County
“(DMX)”
— NOAA / SPC storm report
Storm 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.
Hail was reported over 16 minutes, from to .
Severe hail signal
What 2" hail means for Kamrar 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.
1,132 homes × $12,000 avg. claim
Potential roof exposure
$14M
Potential roof exposure — 1,132 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 1,132 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 $238 on top of the $150 plan.
Kamrar hail history
Other storms in Kamrar.
4 recorded storm days in Kamrar, IA
Map unavailable
NEXRAD surface Storm date Kamrar / IA
Sep 14, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Kamrar / IA
Jul 2, 2026
1.75" Signatures 1.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Kamrar / IA
Jun 10, 2026
1" Estimated 1"
No ground reports filed Open report →
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 Sep 15, 2026.