Hail in Atlantic Jul 27, 2026
Hit 7 days agoThe radar-estimated size surface caught this storm, reaching 0.75" aloft. NEXRAD logged no point detections over Atlantic this day.
0.75"
≈ penny to nickel · radar-estimated size aloft347
0
none filedThe 7th most severe storm Atlantic 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
- 19 /100
- Homes exposed
- 51 /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 Atlantic saw the hail — from two instruments
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.
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.
Only the radar-estimated size surface resolved for Jul 27, 2026 — this storm produced no NEXRAD point detections over Atlantic, so there is one map to show, not two.
Where Jul 27, 2026 sits in Atlantic's hail record
This was Atlantic's 8th recorded hail day, arriving 7 days after the Jul 20, 2026 storm. By severity it ranks 7th of the 8 storms we have logged here. Radar put the day's largest stone over Atlantic at 0.75" — radar-estimated size aloft.
The Jul 27, 2026 convective day was bigger than Atlantic: the same system put hail over 803 other tracked cities, 20 of them in Iowa. Nearest: Exira (10 miles north, up to 0.75"); Anita (16 miles east, up to 0.5"); Adair (17 miles northeast, up to 0.5").
These maps are stills from Atlantic's Jul 27, 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.
The National Weather Service logged no spotter reports for this storm over Atlantic. That absence is ordinary — filing a report takes a person on the spot who saw the hail and phoned it in. What stands as the record for this date is the radar above, which caught the storm regardless.
What 0.75" hail means for Atlantic roofs
Hail this size sits right at the edge of the National Weather Service severe threshold. Newer roofs usually shrug it off, but aging or already-worn shingles can bruise, and soft metals — vents, flashing, gutters — often show the first dents.
$4.2M
Potential roof exposure — 347 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.Track hail over Atlantic on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Atlantic storm history — this Jul 27, 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.
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8 recorded storm days in Atlantic, IA
Other storms in Atlantic
Jul 20, 2026
0.5"
Jul 4, 2026
1"
Jun 5, 2026
1"
May 15, 2026
1"
Apr 23, 2026
1"
Mar 30, 2026
2.5"
Mar 5, 2026
1"