Hail in Donnellson Mar 10, 2026
The radar-estimated size surface caught this storm, reaching 1.5" aloft. NEXRAD logged no point detections over Donnellson this day.
1.5"
≈ ping-pong ball · radar-estimated size aloft1,650
0
none filedThe most severe storm Donnellson 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
- 38 /100
- Homes exposed
- 64 /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 Donnellson saw the hail — from two instruments
Two instruments, one storm: NEXRAD logs the point signatures it detected overhead, while the estimated-size surface models how large the hail aloft could have grown. Agreement between them is not guaranteed — the gaps are where the model ran ahead of, or behind, the detections.
Radar-estimated maximum hail size across the swath, modeled from radar aloft. It reflects the biggest stone the storm could support, which may differ from what actually fell.
Only the radar-estimated size surface resolved for Mar 10, 2026 — this storm produced no NEXRAD point detections over Donnellson, so there is one map to show, not two.
Where Mar 10, 2026 sits in Donnellson's hail record
This was Donnellson's 2nd recorded hail day, arriving 5 days after the Mar 5, 2026 storm. By severity it ranks 1st of the 5 storms we have logged here. Radar put the day's largest stone over Donnellson at 1.5" — radar-estimated size aloft.
The Mar 10, 2026 convective day was bigger than Donnellson: the same system put hail over 470 other tracked cities, 47 of them in Iowa. Nearest: Farmington (5 miles west, up to 2"); West Point (6 miles northeast, up to 1.25"); Bonaparte (10 miles west, up to 2").
These maps are stills from Donnellson's Mar 10, 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 Donnellson, 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 1.5" hail means for Donnellson roofs
At an inch and a half, hail cracks shingles, strips granules down to the mat, and dents gutters, vents, and siding. A footprint like this typically produces a wave of insurance claims — and the contractor who reaches the homeowner first usually gets the inspection.
$20M
Potential roof exposure — 1,650 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.Track hail over Donnellson on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Donnellson storm history — this Mar 10, 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
5 recorded storm days in Donnellson, IA
Other storms in Donnellson
Jun 17, 2026
0.5"
Apr 17, 2026
1.25"
Mar 26, 2026
1.75"
Mar 5, 2026
1"