Hail in Owatonna · Aug 8, 2026
NEXRAD logged 0 hail signatures up to 0"; the estimated-size surface reached 0.5" aloft. Open it on the live map to see the swath over the streets.
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Convective day · Aug 8, 2026 · noon–noon UTC
Severity
The 4th most severe storm Owatonna has seen in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Peak hail signal
- 13 /100
- Homes exposed
- 59 /100
- Ground truth
- 0 /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 Owatonna 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.
Radar signature field 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.
Estimated size field 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.
The storm in context
Where Aug 8, 2026 sits in Owatonna's hail record.
This was Owatonna's 6th recorded hail day, arriving 20 days after the Jul 19, 2026 storm. By severity it ranks 4th of the 7 storms we have logged here. Radar put the day's largest stone over Owatonna at 0.5" — radar-estimated size aloft.
The Aug 8, 2026 convective day was bigger than Owatonna: the same system put hail over 500 other tracked cities, 42 of them in Minnesota. Nearest: Morristown (14 miles northwest, up to 0.5"); Waseca (15 miles west, up to 0.5"); Mazeppa (36 miles east, up to 0.5").
These maps are stills. In the app this date is one of 7 Owatonna 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
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 Owatonna. 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.
Below the severe threshold
What 0.5" hail means for Owatonna roofs.
Radar signals under three-quarters of an inch stay below the National Weather Service severe threshold and generally indicate lower roof risk. Older or already-worn materials can still show effects, but radar alone cannot determine whether a specific roof was damaged.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
Potential roof exposure
$11M
Potential roof exposure — 943 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 5 jobs
- Illustrative work
- ~$75K
Close just 0.5% of the 943 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
August 2028
Claims from this storm can typically be filed until around August 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 $198 on top of the $150 plan.
Owatonna hail history
Other storms in Owatonna.
Estimated-size surface Sep 1, 2026
1.25"
Estimated-size surface Jul 19, 2026
0.5"
Estimated-size surface Jun 30, 2026
Estimated-size surface Jun 7, 2026
1.25"
NEXRAD surface Apr 23, 2026
1"
Estimated-size surface Apr 13, 2026
2"Take your next area into the field.
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