Tornado Rating unknown
4 NNW Kimball Kimball County
“NWS Employee reported a tornado due west of location. (CYS)”
— NOAA / SPC storm report
/ Storm field report · Kimball
Hail in Kimball · May 21, 2026
The estimated-size surface reached 1" aloft; NEXRAD logged no point detections over Kimball that day. Open it on the live map to see the swath over the streets.
A tornado was also reported to the National Weather Service during this storm. The ground reports below show where it was filed.
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Peak hail signal 1" ≈ quarter · radar-estimated size aloft
Homes in the hail footprint 430
Ground reports 3 1 hail · 2 tornado
Radar surfaces 1 Estimated size only
Convective day · May 21, 2026 · noon–noon UTC
Severity
The 2nd most severe storm Kimball has seen in the last 12 months
Composite score · 4.1 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
4.1 /10
- Peak hail signal
- 25 /100
- Homes exposed
- 53 /100
- Ground truth
- 83 /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 Kimball saw the hail — from two instruments
May 21, 2026 · Kimball, NE
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 hail size Surface resolved
Estimated size field 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.
Max size
1"
Only the radar-estimated size surface resolved for May 21, 2026 — this storm produced no NEXRAD point detections over Kimball, so there is one map to show, not two.
The storm in context
Where May 21, 2026 sits in Kimball's hail record.
This was Kimball's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 2nd of the 10 storms we have logged here. Radar put the day's largest stone over Kimball at 1" — radar-estimated size aloft.
The May 21, 2026 convective day was bigger than Kimball: the same system put hail over 120 other tracked cities, 6 of them in Nebraska. Nearest: Bushnell (5 miles west, up to 1"); Harrisburg (21 miles north, up to 0.5"); Padroni (23 miles southeast, up to 0.75").
These maps are stills. In the app this date is one of 10 Kimball 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
3 reports filed with the NWS
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.
Tornado reports
2 reports Tornado Rating unknown
3 SE Kimball Kimball County
“Emergency manager observed a quick tornado spinup that lasted about 30 seconds. (CYS)”
— NOAA / SPC storm report
Hail reports
1 report Hail size 1"
3 E Bushnell Kimball County
“Corrects previous hail report from 3 E Bushnell. EM reported quarter-sized hail 3 mi east of Bushnell. (CYS)”
— NOAA / SPC storm report
Storm forensics
How the storm moved
Timing and place names from NOAA ground reports
Read from the arrival times and locations of the NOAA ground reports, not a radar-measured storm track.
Reports came from Bushnell — beyond Kimball itself.
Damage-capable hail signal
What 1" hail means for Kimball roofs.
Quarter-size and larger hail can bruise asphalt mats, remove granules, and dent exposed soft metal. The mapped footprint identifies an inspection priority area — it does not identify which individual roofs, if any, sustained damage.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
430 homes × $12,000 avg. claim
Potential roof exposure
$5.2M
Potential roof exposure — 430 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 2 jobs
- Illustrative work
- ~$30K
Close just 0.5% of the 430 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
May 2028
Claims from this storm can typically be filed until around May 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 $90 on top of the $150 plan.
Kimball hail history
Other storms in Kimball.
10 recorded storm days in Kimball, NE
Estimated-size surface Storm date Kimball / NE
Sep 5, 2026
0.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Kimball / NE
Sep 2, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Kimball / NE
Aug 25, 2026
0.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Kimball / NE
Aug 22, 2026
0.75" Estimated 0.75"
1 ground report Open report →
Estimated-size surface Storm date Kimball / NE
Aug 15, 2026
1.25" Estimated 1.25"
No ground reports filed Open report →
Estimated-size surface Storm date Kimball / NE
Aug 12, 2026
1.75" Estimated 1.75"
1 ground report Open report →
Estimated-size surface Storm date Kimball / NE
Jul 9, 2026
1.5" Signatures 1.5" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Kimball / NE
Jul 1, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Kimball / NE
Jun 22, 2026
1.75" Estimated 1.75"
10 ground reports Open report →
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A storm day here is a convective day — it runs from noon to noon
UTC, so late-night hail is grouped with the afternoon storm that
spawned it rather than split across two calendar dates. Ground
reports are public-domain observations from the NOAA Storm
Prediction Center. Radar tells you where to look. Only an inspection confirms damage at an address. Last updated Sep 6, 2026.