Hail in Winnebago · Sep 6, 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 · Sep 6, 2026 · noon–noon UTC
Severity
The 14th most severe storm Winnebago 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
- 0 /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 Winnebago 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 Sep 6, 2026 sits in Winnebago's hail record.
This was Winnebago's 13th recorded hail day, arriving 5 days after the Sep 1, 2026 storm. By severity it ranks 14th of the 14 storms we have logged here. Radar put the day's largest stone over Winnebago at 0.5" — radar-estimated size aloft.
The Sep 6, 2026 convective day was bigger than Winnebago: the same system put hail over 608 other tracked cities, 41 of them in Minnesota. Nearest: Delavan (7 miles east, up to 0.5"); Butterfield (33 miles west, up to 0.75"); Jackson (41 miles west, up to 0.75").
These maps are stills. In the app this date is one of 14 Winnebago 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 Winnebago. 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 Winnebago 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
Winnebago hail history
Other storms in Winnebago.
Estimated-size surface Sep 7, 2026
0.5"
Estimated-size surface Sep 1, 2026
1.5"
Estimated-size surface Aug 8, 2026
0.5"
Estimated-size surface Aug 7, 2026
1.75"
Estimated-size surface Jul 19, 2026
0.5"
Estimated-size surface Jun 29, 2026
1"
Estimated-size surface Jun 28, 2026
0.75"
Estimated-size surface Jun 27, 2026
0.5"
Estimated-size surface May 25, 2026
1"
Estimated-size surface May 18, 2026
1.5"
Estimated-size surface May 17, 2026
2.5"
Estimated-size surface May 15, 2026
1.75"
Estimated-size surface Apr 13, 2026
2.75"Take your next area into the field.
See the hail, review your recommendations, and canvass with Overview on iPhone.
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