Hail size 2.75"
1 NE Story City Story County
“(DMX)”
— NOAA / SPC storm report
/ Storm field report · Boone
Hail in Story City · Jul 20, 2026
The estimated-size surface reached 2" aloft; NEXRAD logged no point detections over Story City 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 3,531
Ground reports 1 1 hail
Radar surfaces 1 Estimated size only
Convective day · Jul 20, 2026 · noon–noon UTC
Severity
The most severe storm Story City has seen in the last 12 months
Composite score · 5.0 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
5.0 /10
- Peak hail signal
- 50 /100
- Homes exposed
- 71 /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 Story City saw the hail — from two instruments
Jul 20, 2026 · Story City, 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 Story City, so there is one map to show, not two.
The storm in context
Where Jul 20, 2026 sits in Story City's hail record.
This was Story City's 6th recorded hail day, arriving 22 days after the Jun 28, 2026 storm. By severity it ranks 1st of the 8 storms we have logged here. Radar put the day's largest stone over Story City at 2" — radar-estimated size aloft.
The Jul 20, 2026 convective day was bigger than Story City: the same system put hail over 553 other tracked cities, 178 of them in Iowa. Nearest: Jewell (7 miles north, up to 1.25"); Ellsworth (9 miles northeast, up to 1.75"); Stanhope (9 miles northwest, up to 1.25").
These maps are stills. In the app this date is one of 8 Story City 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 reportSevere hail signal
What 2" hail means for Story City 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.
3,531 homes × $12,000 avg. claim
Potential roof exposure
$42M
Potential roof exposure — 3,531 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 18 jobs
- Illustrative work
- ~$270K
Close just 0.5% of the 3,531 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 $742 on top of the $150 plan.
Story City hail history
Other storms in Story City.
8 recorded storm days in Story City, IA
Estimated-size surface Storm date Story City / IA
Sep 14, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Story City / IA
Aug 4, 2026
0.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Story City / IA
Jun 28, 2026
2.5" Signatures 2.5" Estimated 1.5"
No ground reports filed Open report →
Estimated-size surface Storm date Story City / IA
Jun 16, 2026
0.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Story City / IA
Jun 10, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Story City / IA
Apr 15, 2026
0.75" Estimated 0.75"
2 ground reports Open report →
NEXRAD surface Storm date Story City / IA
Apr 3, 2026
No ground reports filed Open report →
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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.