Hail size 1"
2 SSW Denison Crawford County
“(DMX)”
— NOAA / SPC storm report
/ Storm field report · Crawford
Hail in Dow City · Apr 23, 2026
NEXRAD logged 26 hail signatures up to 2.5"; the estimated-size surface reached 1.5" aloft. At 2.5" — baseball — 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 2.5" ≈ baseball · the largest NEXRAD radar signature
Homes in the hail footprint 574
Ground reports 1 1 hail
Radar surfaces 2 NEXRAD + estimated size
Convective day · Apr 23, 2026 · noon–noon UTC
Severity
The 2nd most severe storm Dow City has seen in the last 12 months
Composite score · 5.4 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
5.4 /10
- Peak hail signal
- 63 /100
- Homes exposed
- 55 /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 Dow City saw the hail — from two instruments
Apr 23, 2026 · Dow 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.
NEXRAD radar signatures Surface resolved
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.
Max size
2.5"
Detections
26
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
1.5"
The storm in context
Where Apr 23, 2026 sits in Dow City's hail record.
This was Dow City's 2nd recorded hail day, arriving 8 days after the Apr 15, 2026 storm. By severity it ranks 2nd of the 10 storms we have logged here. Radar put the day's largest stone over Dow City at 2.5" — the largest NEXRAD radar signature.
The Apr 23, 2026 convective day was bigger than Dow City: the same system put hail over 703 other tracked cities, 252 of them in Iowa. Nearest: Earling (7 miles south, up to 2.5"); Defiance (9 miles southeast, up to 2.75"); Denison (9 miles northeast, up to 2").
These maps are stills. In the app this date is one of 10 Dow 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 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 Denison — beyond Dow City itself.
Severe hail signal
What 2.5" hail means for Dow 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.
574 homes × $12,000 avg. claim
Potential roof exposure
$6.9M
Potential roof exposure — 574 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 3 jobs
- Illustrative work
- ~$45K
Close just 0.5% of the 574 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 $121 on top of the $150 plan.
Dow City hail history
Other storms in Dow City.
10 recorded storm days in Dow City, IA
Estimated-size surface Storm date Dow City / IA
Sep 14, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Dow City / IA
Sep 6, 2026
1.25" Estimated 1.25"
No ground reports filed Open report →
Estimated-size surface Storm date Dow City / IA
Aug 13, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Dow City / IA
Aug 12, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Dow City / IA
Aug 11, 2026
0.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Dow City / IA
Jul 8, 2026
1.75" Signatures 1.75" Estimated 1"
No ground reports filed Open report →
Estimated-size surface Storm date Dow City / IA
Jul 4, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Dow City / IA
May 17, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Dow City / IA
Apr 15, 2026
3" Estimated 3"
6 ground reports Open report →
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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.