Hail in Corydon Jul 20, 2026
Hit 14 days agoBoth radar surfaces caught this storm: NEXRAD logged 0 hail signatures up to 1", and the radar-estimated size reached 0.5" aloft.
1"
≈ quarter · the largest NEXRAD radar signature106
0
none filedThe 5th most severe storm Corydon 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
- 41 /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 Corydon saw the hail — from two instruments
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.
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.
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.
Where Jul 20, 2026 sits in Corydon's hail record
This was Corydon's 8th recorded hail day, arriving 17 days after the Jul 3, 2026 storm. By severity it ranks 5th of the 8 storms we have logged here. Radar put the day's largest stone over Corydon at 1" — the largest NEXRAD radar signature.
The Jul 20, 2026 convective day was bigger than Corydon: the same system put hail over 553 other tracked cities, 178 of them in Iowa. Nearest: Humeston (5 miles west, up to 1"); Allerton (11 miles south, up to 1"); Promise City (16 miles east, up to 1.5").
These maps are stills from Corydon's Jul 20, 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.
Nobody on the ground filed a report over Corydon for this date, which says more about who was watching than about the storm: spotter reports only exist where there is an observer. The radar surfaces above carry the evidence for this one.
What 1" hail means for Corydon 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.
$1.3M
Potential roof exposure — 106 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.Track hail over Corydon on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Corydon storm history — this Jul 20, 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
8 recorded storm days in Corydon, IA
Other storms in Corydon
Jul 3, 2026
1"
Jun 11, 2026
1.25"
Jun 5, 2026
1"
May 16, 2026
1.25"
Apr 17, 2026
2"
Apr 15, 2026
0.75"
Apr 2, 2026
1"