“Mesonet site: Russel Springs (KSM) reported a 64 mph gust. (GLD)”
— NOAA / SPC storm report
Hail in Winona · Aug 14, 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.
Convective day · Aug 14, 2026 · noon–noon UTC
Severity
The 14th most severe storm Winona 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
- 42 /100
- Ground truth
- 33 /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 Winona 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.
Radar signature field Where NEXRAD flagged hail as the storm passed — point signatures from the radar, which indicate hail overhead rather than confirm what landed.
Estimated size field 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.
The storm in context
Where Aug 14, 2026 sits in Winona's hail record.
This was Winona's 13th recorded hail day, arriving 22 days after the Jul 23, 2026 storm. By severity it ranks 14th of the 18 storms we have logged here. Radar put the day's largest stone over Winona at 0.5" — radar-estimated size aloft.
The Aug 14, 2026 convective day was bigger than Winona: the same system put hail over 316 other tracked cities, 53 of them in Kansas. Nearest: Colby (21 miles north, up to 0.5"); Edson (33 miles northwest, up to 1"); Goodland (37 miles northwest, up to 1.25").
These maps are stills. In the app this date is one of 18 Winona 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.
Wind reports
2 reports“Kansas mesonet site Russell Springs 3SW measured 68 mph wind gust. (GLD)”
— NOAA / SPC storm report
Storm forensics
How the storm moved
Read from the arrival times and locations of the NOAA ground reports, not a radar-measured storm track.
Hail was reported over 15 minutes, from to .
Reports came from Russell Springs — beyond Winona itself.
Below the severe threshold
What 0.5" hail means for Winona 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
$1.4M
Potential roof exposure — 120 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 1 job
- Illustrative work
- ~$15K
Close just 0.5% of the 120 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 $25 on top of the $150 plan.
Winona hail history
Other storms in Winona.
Estimated-size surface Sep 4, 2026
1"
Estimated-size surface Aug 30, 2026
0.5"
Estimated-size surface Aug 21, 2026
0.75"
Estimated-size surface Aug 20, 2026
1.25"
Estimated-size surface Aug 19, 2026
1.75"
Estimated-size surface Jul 23, 2026
1.75"
Estimated-size surface Jul 9, 2026
1"
Estimated-size surface Jul 3, 2026
1.75"
Estimated-size surface Jul 1, 2026
1.75"
Estimated-size surface Jun 30, 2026
1.75"
Estimated-size surface Jun 24, 2026
1.25"
Estimated-size surface Jun 21, 2026
1.75"
Estimated-size surface Jun 20, 2026
2.75"
Estimated-size surface Jun 12, 2026
1"
Estimated-size surface Jun 1, 2026
2.75"
Estimated-size surface May 29, 2026
1"
Estimated-size surface May 16, 2026
4"Take your next area into the field.
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