Hail size 1.75"
1 WSW Mccook Red Willow County
“estimated ping pong to golf ball hail. (GLD)”
— NOAA / SPC storm report
/ Storm field report · Red Willow
Hail in Mc Cook · Aug 20, 2026
Hit 23 days ago
NEXRAD logged 0 hail signatures up to 0"; the estimated-size surface reached 2.75" aloft. At 2.75" — baseball — this is a severe hail signal associated with roof damage. Open it on the live map to see the swath over the streets.
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Peak hail signal 2.75" ≈ baseball · radar-estimated size aloft
Homes in the hail footprint 7,338
Ground reports 5 3 hail · 2 wind
Radar surfaces 2 NEXRAD + estimated size
Convective day · Aug 20, 2026 · noon–noon UTC
Severity
The most severe storm Mc Cook has seen in the last 12 months
Composite score · 7.3 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
7.3 /10
- Peak hail signal
- 69 /100
- Homes exposed
- 77 /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 Mc Cook saw the hail — from two instruments
Aug 20, 2026 · Mc Cook, NE
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.
NEXRAD radar signatures Surface resolved
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.
Max size
0"
Detections
0
Radar-estimated hail size Surface resolved
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.
Max size
2.75"
The storm in context
Where Aug 20, 2026 sits in Mc Cook's hail record.
This was Mc Cook's 12th recorded hail day, arriving 6 days after the Aug 14, 2026 storm. By severity it ranks 1st of the 16 storms we have logged here. Radar put the day's largest stone over Mc Cook at 2.75" — radar-estimated size aloft.
The Aug 20, 2026 convective day was bigger than Mc Cook: the same system put hail over 640 other tracked cities, 31 of them in Nebraska. Nearest: Indianola (9 miles northeast, up to 2.25"); Bartley (16 miles east, up to 2.25"); Stockville (17 miles northeast, up to 3").
These maps are stills. In the app this date is one of 16 Mc Cook 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
5 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.
Hail reports
3 reports Hail size 2"
Mccook Red Willow County
“ping pong to 2 inch hail stones. Stone compared to a quarter. (GLD)”
— NOAA / SPC storm report
Hail size 1.5"
Mccook Red Willow County
“estimated half dollar to ping pong ball hail. time estimated to when core perked up over town. (GLD)”
— NOAA / SPC storm report
Wind reports
2 reports Wind gust 66 mph
12 SSW Stockville Frontier County
“Davis Weatherlink Station. (LBF)”
— NOAA / SPC storm report
Wind gust 60 mph
2 E Mccook Red Willow County
“ASOS station KMCK McCook Airport. (GLD)”
— 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.
The storm tracked southwest at roughly 10 mph, based on the timing of ground reports.
Hail was reported over 85 minutes, from to .
Reports came from Mccook and Stockville — beyond Mc Cook itself.
Severe hail signal
What 2.75" hail means for Mc Cook roofs.
Two-inch-plus hail is capable of puncturing shingles, breaking skylights or windows, and heavily denting soft materials. The strongest radar bands warrant prompt inspection, but neither the signal nor the footprint confirms damage at a specific address.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
7,338 homes × $12,000 avg. claim
Potential roof exposure
$88M
Potential roof exposure — 7,338 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 37 jobs
- Illustrative work
- ~$555K
Close just 0.5% of the 7,338 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 $1,541 on top of the $150 plan.
Mc Cook hail history
Other storms in Mc Cook.
16 recorded storm days in Mc Cook, NE
Estimated-size surface Storm date Mc Cook / NE
Sep 5, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Mc Cook / NE
Aug 28, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Mc Cook / NE
Aug 27, 2026
0.5" Estimated 0.5"
2 ground reports Open report →
Estimated-size surface Storm date Mc Cook / NE
Aug 26, 2026
2.75" Estimated 2.75"
2 ground reports Open report →
Estimated-size surface Storm date Mc Cook / NE
Aug 14, 2026
0.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Mc Cook / NE
Aug 13, 2026
0.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Mc Cook / NE
Aug 3, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Mc Cook / NE
Jul 30, 2026
1.75" Signatures 1.75" Estimated 1.25"
No ground reports filed Open report →
Estimated-size surface Storm date Mc Cook / NE
Jul 27, 2026
2.5" Signatures 2.5" Estimated 1.75"
1 ground report Open report →
Estimated-size surface Storm date Mc Cook / NE
Jul 8, 2026
1.75" Signatures 1.75" Estimated 1.25"
No ground reports filed Open report →
Estimated-size surface Storm date Mc Cook / NE
Jul 2, 2026
1.75" Signatures 1.75" Estimated 1.5"
1 ground report Open report →
Estimated-size surface Storm date Mc Cook / NE
Jun 12, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Mc Cook / NE
May 29, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Mc Cook / NE
May 16, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Mc Cook / NE
Apr 11, 2026
0.75" Signatures 0.75"
No ground reports filed 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.