Hail size 1"
1 WSW Bettendorf Scott County
“(DVN)”
— NOAA / SPC storm report
/ Storm field report · Scott
Hail in Davenport · May 17, 2026
NEXRAD logged 0 hail signatures up to 2.5"; the estimated-size surface reached 0.75" 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 21,687
Ground reports 3 3 hail
Radar surfaces 2 NEXRAD + estimated size
Convective day · May 17, 2026 · noon–noon UTC
Severity
The most severe storm Davenport has seen in the last 12 months
Composite score · 6.7 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
6.7 /10
- Peak hail signal
- 63 /100
- Homes exposed
- 87 /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 Davenport saw the hail — from two instruments
May 17, 2026 · Davenport, IA
The maps here read the same storm from two angles — point detections from NEXRAD, and modeled hail size aloft. Where the two disagree is informative: it marks where estimated size outran the signatures, or trailed them.
NEXRAD radar signatures Surface resolved
Radar signature field Where NEXRAD flagged hail as the storm passed — point signatures from the radar, which indicate hail overhead rather than confirm what landed.
Max size
2.5"
Detections
0
Radar-estimated hail size Surface resolved
Estimated size field The modeled maximum hail size across the swath, derived from radar aloft — the largest stone the storm could have supported, which is not necessarily what reached the ground.
Max size
0.75"
The storm in context
Where May 17, 2026 sits in Davenport's hail record.
This was Davenport's 2nd recorded hail day, arriving 47 days after the Mar 31, 2026 storm. By severity it ranks 1st of the 5 storms we have logged here. Radar put the day's largest stone over Davenport at 2.5" — the largest NEXRAD radar signature.
The May 17, 2026 convective day was bigger than Davenport: the same system put hail over 894 other tracked cities, 139 of them in Iowa. Nearest: Rock Island (5 miles east, up to 2.5"); Moline (10 miles east, up to 2.5"); Bettendorf (17 miles northeast, up to 1.75").
These maps are stills. In the app this date is one of 5 Davenport 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
3 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
3 reports Hail size 1.25"
1 NNW Bettendorf Scott County
“Half dollar size hail reported by off duty NWS employee. (DVN)”
— NOAA / SPC storm report
Hail size 1.25"
2 N Bettendorf Scott County
“(DVN)”
— 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.
Reports came from Bettendorf — beyond Davenport itself.
Severe hail signal
What 2.5" hail means for Davenport 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.
21,687 homes × $12,000 avg. claim
Potential roof exposure
$260M
Potential roof exposure — 21,687 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 108 jobs
- Illustrative work
- ~$1.6M
Close just 0.5% of the 21,687 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
May 2028
Claims from this storm can typically be filed until around May 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 $4,554 on top of the $150 plan.
Davenport hail history
Other storms in Davenport.
5 recorded storm days in Davenport, IA
Estimated-size surface Storm date Davenport / IA
Jul 20, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Davenport / IA
Jul 3, 2026
1.75" Signatures 1.75" Estimated 1"
No ground reports filed Open report →
Estimated-size surface Storm date Davenport / IA
Jun 11, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
NEXRAD surface Storm date Davenport / IA
Mar 31, 2026
1" Signatures 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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For iPhone. Android coming soon.
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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 3, 2026.