Hail size 1"
1 W Story City Story County
“(DMX)”
— NOAA / SPC storm report
/ Storm field report · Boone
Hail in Story City · Apr 15, 2026
The estimated-size surface reached 0.75" aloft; NEXRAD logged no point detections over Story City that day. Open it on the live map to see the swath over the streets.
7-day free trial in the iPhone app. No card required to start.
For iPhone. Android coming soon.
Web trial: 7 days free. Card required. $150/month after the trial unless cancelled.
Peak hail signal 0.75" ≈ penny to nickel · radar-estimated size aloft
Homes in the hail footprint 824
Ground reports 2 2 hail
Radar surfaces 1 Estimated size only
Convective day · Apr 15, 2026 · noon–noon UTC
Severity
The 3rd most severe storm Story City has seen in the last 12 months
Composite score · 3.1 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
3.1 /10
- Peak hail signal
- 19 /100
- Homes exposed
- 58 /100
- Ground truth
- 33 /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
Apr 15, 2026 · Story City, IA
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.
Radar-estimated hail size Surface resolved
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.
Max size
0.75"
Only the radar-estimated size surface resolved for Apr 15, 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 Apr 15, 2026 sits in Story City's hail record.
This was Story City's 2nd recorded hail day, arriving 12 days after the Apr 3, 2026 storm. By severity it ranks 3rd of the 8 storms we have logged here. Radar put the day's largest stone over Story City at 0.75" — radar-estimated size aloft.
The Apr 15, 2026 convective day was bigger than Story City: the same system put hail over 425 other tracked cities, 127 of them in Iowa. Nearest: Jewell (7 miles north, up to 0.5"); Roland (10 miles east, up to 0.75"); Ames (11 miles south, up to 1").
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
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.
Hail reports
2 reports Hail size 1.25"
Story City Story County
“(DMX)”
— NOAA / SPC storm report
Near the severe threshold
What 0.75" hail means for Story City 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.
824 homes × $12,000 avg. claim
Potential roof exposure
$9.9M
Potential roof exposure — 824 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 4 jobs
- Illustrative work
- ~$60K
Close just 0.5% of the 824 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 $173 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
Jul 20, 2026
2" Estimated 2"
1 ground report 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 →
NEXRAD surface Storm date Story City / IA
Apr 3, 2026
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.
7-day free trial in the iPhone app. No card required to start.
For iPhone. Android coming soon.
Web trial: 7 days free. Card required. $150/month after the trial unless cancelled.
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.