Wind gust 60 mph
3 SE Berea Box Butte County
“Nebraska Mesonet. (CYS)”
— NOAA / SPC storm report
/ Storm field report · Box Butte
Hail in Alliance · Aug 15, 2026
Hit 30 days ago
NEXRAD logged 0 hail signatures up to 0"; the estimated-size surface reached 1.25" aloft. Open it on the live map to see the swath over the streets.
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Peak hail signal 1.25" ≈ half-dollar · radar-estimated size aloft
Homes in the hail footprint 548
Ground reports 1 1 wind
Radar surfaces 2 NEXRAD + estimated size
Convective day · Aug 15, 2026 · noon–noon UTC
Severity
The 9th most severe storm Alliance has seen in the last 12 months
Composite score · 3.5 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
3.5 /10
- Peak hail signal
- 31 /100
- Homes exposed
- 55 /100
- Ground truth
- 17 /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 Alliance saw the hail — from two instruments
Aug 15, 2026 · Alliance, NE
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.
NEXRAD radar signatures Surface resolved
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.
Max size
0"
Detections
0
Radar-estimated hail size Surface resolved
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.
Max size
1.25"
The storm in context
Where Aug 15, 2026 sits in Alliance's hail record.
This was Alliance's 13th recorded hail day, arriving 3 days after the Aug 12, 2026 storm. By severity it ranks 9th of the 16 storms we have logged here. Radar put the day's largest stone over Alliance at 1.25" — radar-estimated size aloft.
The Aug 15, 2026 convective day was bigger than Alliance: the same system put hail over 188 other tracked cities, 10 of them in Nebraska. Nearest: Hemingford (11 miles north, up to 1.25"); Crawford (29 miles northwest, up to 0.5"); Kimball (79 miles southwest, up to 1.25").
These maps are stills. In the app this date is one of 16 Alliance 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
1 report 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.
Wind reports
1 reportStorm 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 Berea — beyond Alliance itself.
Damage-capable hail signal
What 1.25" hail means for Alliance 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.
548 homes × $12,000 avg. claim
Potential roof exposure
$6.6M
Potential roof exposure — 548 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 3 jobs
- Illustrative work
- ~$45K
Close just 0.5% of the 548 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 $115 on top of the $150 plan.
Alliance hail history
Other storms in Alliance.
16 recorded storm days in Alliance, NE
Estimated-size surface Storm date Alliance / NE
Sep 5, 2026
3" Estimated 3"
8 ground reports Open report →
Estimated-size surface Storm date Alliance / NE
Aug 23, 2026
0.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Alliance / NE
Aug 17, 2026
1.25" Estimated 1.25"
No ground reports filed Open report →
Estimated-size surface Storm date Alliance / NE
Aug 12, 2026
2.25" Estimated 2.25"
No ground reports filed Open report →
Estimated-size surface Storm date Alliance / NE
Aug 9, 2026
1" Estimated 1"
1 ground report Open report →
Estimated-size surface Storm date Alliance / NE
Jul 28, 2026
3" Signatures 3" Estimated 1.75"
2 ground reports Open report →
Estimated-size surface Storm date Alliance / NE
Jul 9, 2026
1.75" Signatures 1.75" Estimated 1.25"
No ground reports filed Open report →
Estimated-size surface Storm date Alliance / NE
Jul 6, 2026
3" Signatures 3" Estimated 2"
No ground reports filed Open report →
Estimated-size surface Storm date Alliance / NE
Jul 3, 2026
3" Signatures 3" Estimated 2"
1 ground report Open report →
Estimated-size surface Storm date Alliance / NE
Jun 27, 2026
2.75" Signatures 2.75" Estimated 2.5"
2 ground reports Open report →
Estimated-size surface Storm date Alliance / NE
Jun 26, 2026
1" Signatures 1" Estimated 0.75"
2 ground reports Open report →
Estimated-size surface Storm date Alliance / NE
Jun 8, 2026
1.75" Signatures 1.75" Estimated 1.5"
No ground reports filed Open report →
Estimated-size surface Storm date Alliance / NE
Jun 1, 2026
2.5" Signatures 2.5" Estimated 1.5"
1 ground report Open report →
Estimated-size surface Storm date Alliance / NE
May 30, 2026
1.75" Signatures 1.75" Estimated 1"
No ground reports filed Open report →
Estimated-size surface Storm date Alliance / NE
May 29, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Take your next area into the field.
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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.