Hail in Duncan Jul 4, 2026
Hit 30 days agoBoth radar surfaces caught this storm: NEXRAD logged 0 hail signatures up to 1", and the radar-estimated size reached 0.75" aloft.
1"
≈ quarter · the largest NEXRAD radar signature96
0
none filedThe 9th most severe storm Duncan has seen in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Hail size
- 25 /100
- Homes exposed
- 40 /100
- Ground truth
- 0 /100
Largest hailstone — the top predictor of roof damage.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
How Duncan saw the hail — from two instruments
We map this storm two ways: the NEXRAD radar signatures the storm produced overhead, and the radar-estimated size of the hail in the air. The two surfaces don’t have to match — where they diverge is where estimated size aloft ran ahead of, or behind, what the signatures caught.
NEXRAD radar signatures — the point detections the storm produced overhead. A signature is where the radar saw hail, not a confirmed stone on the ground.
Maximum hail size as estimated from radar aloft. Treat it as the storm's ceiling — the largest supportable stone — rather than a ground measurement.
Where Jul 4, 2026 sits in Duncan's hail record
This was Duncan's 10th recorded hail day, arriving 13 days after the Jun 21, 2026 storm. By severity it ranks 9th of the 11 storms we have logged here. Radar put the day's largest stone over Duncan at 1" — the largest NEXRAD radar signature.
The Jul 4, 2026 convective day was bigger than Duncan: the same system put hail over 2,035 other tracked cities, 231 of them in Oklahoma. Nearest: Marlow (12 miles northwest, up to 1"); Foster (13 miles northeast, up to 1"); Ratliff City (14 miles east, up to 1").
These maps are stills from Duncan's Jul 4, 2026 storm. In the Overview app the same surfaces are live — radar updating in real time, radar-estimated hail size as it forms, and NWS spotter reports pinned where they're filed — with a radar replay you can scrub back over any past day.
What people on the ground reported
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.
For this storm over Duncan, the NWS report log is empty — a common outcome, since ground reports only happen when someone witnesses the hail and takes the time to call it in. The detection record for the date lives in the radar maps above.
What 1" hail means for Duncan roofs
Quarter-size and larger hail is where asphalt shingle damage starts in earnest: bruised mats and granule loss that homeowners can't see from the ground. Most people inside the footprint won't know their roof was hit until someone inspects it.
$1.2M
Potential roof exposure — 96 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.Track hail over Duncan on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Duncan storm history — this Jul 4, 2026 storm included — sits underneath. When you're ready, draw this storm's footprint and pull highly accurate homeowner contact information for every address inside it.
Highly accurate contact information starting at $0.23 per address — every contact included. Digital leads cost $15–$40. Start with a 7-day free trial — no credit card required. See pricing
11 recorded storm days in Duncan, OK
Other storms in Duncan
Jul 5, 2026
1.75"
Jun 21, 2026
1"
Jun 18, 2026
0.5"
May 9, 2026
3.25"
May 8, 2026
4"
Apr 28, 2026
1"
Apr 25, 2026
1.5"
Apr 14, 2026
1.25"
Mar 10, 2026
2"
Mar 6, 2026
1.75"