/ Storm field report · Red Willow

Hail in Mc Cook · Aug 13, 2026

Hit 30 days ago

NEXRAD logged 0 hail signatures up to 0"; the estimated-size surface reached 0.75" aloft. Open it on the live map to see the swath over the streets.

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Peak hail signal 0.75" ≈ penny to nickel · radar-estimated size aloft
Homes in the hail footprint 174
Ground reports 0 none filed
Radar surfaces 2 NEXRAD + estimated size

Convective day · Aug 13, 2026 · noon–noon UTC

Severity

The 11th most severe storm Mc Cook has seen in the last 12 months

Composite score · 2.2 / 10
Storm severity score

Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.

2.2 /10
Peak hail signal
19 /100

Largest radar-indicated size — a signal of damage potential, not confirmation.

Homes exposed
45 /100

How many homes sit inside the storm's footprint.

Ground truth
0 /100

Independent storm reports filed with the NWS.

Evidence / storm surfaces

How Mc Cook saw the hail — from two instruments

Aug 13, 2026 · Mc Cook, NE

We map this storm two ways: the NEXRAD radar signatures the storm produced overhead, and the radar-estimated size of the hail in the air. The two surfaces don’t have to match — where they diverge is where estimated size aloft ran ahead of, or behind, what the signatures caught.

NEXRAD radar signatures Surface resolved
NEXRAD radar-signature map of the hail storm over Mc Cook, NE on Aug 13, 2026 Radar signature field

NEXRAD radar signatures — the point detections the storm produced overhead. A signature is where the radar saw hail, not a confirmed stone on the ground.

Max size 0" Detections 0
Radar-estimated hail size Surface resolved
Radar-estimated hail-size map of the storm over Mc Cook, NE on Aug 13, 2026 Estimated size field

Maximum hail size as estimated from radar aloft. Treat it as the storm's ceiling — the largest supportable stone — rather than a ground measurement.

Max size 0.75"

The storm in context

Where Aug 13, 2026 sits in Mc Cook's hail record.

This was Mc Cook's 10th recorded hail day, arriving 10 days after the Aug 3, 2026 storm. By severity it ranks 11th of the 16 storms we have logged here. Radar put the day's largest stone over Mc Cook at 0.75" — radar-estimated size aloft.

The Aug 13, 2026 convective day was bigger than Mc Cook: the same system put hail over 437 other tracked cities, 22 of them in Nebraska. Nearest: Bartley (16 miles east, up to 1.25"); Culbertson (22 miles southwest, up to 0.5"); Oberlin (35 miles south, up to 1.25").

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

No 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.

The National Weather Service logged no spotter reports for this storm over Mc Cook. 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.

Near the severe threshold

What 0.75" hail means for Mc Cook roofs.

A signal this size sits near the National Weather Service severe threshold. Aging shingles and soft metals such as vents, flashing, and gutters may be more vulnerable; roof age, wind, and material condition all matter, and only an inspection can confirm damage.

Radar reading · not confirmed damage

Roofing exposure

What this storm is worth to a roofer.

174 homes × $12,000 avg. claim

Potential roof exposure

$2.1M

Potential roof exposure — 174 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 174 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 $37 on top of the $150 plan.

Mc Cook hail history

Other storms in Mc Cook.

16 recorded storm days in Mc Cook, NE
← All hail in Mc Cook
Radar-estimated hail-size map of the storm over Mc Cook, NE on Sep 5, 2026 Estimated-size surface
Storm date Mc Cook / NE

Sep 5, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Mc Cook, NE on Aug 28, 2026 Estimated-size surface
Storm date Mc Cook / NE

Aug 28, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Mc Cook, NE on Aug 27, 2026 Estimated-size surface
Storm date Mc Cook / NE

Aug 27, 2026

0.5"
Estimated 0.5"
2 ground reports Open report →
Radar-estimated hail-size map of the storm over Mc Cook, NE on Aug 26, 2026 Estimated-size surface
Storm date Mc Cook / NE

Aug 26, 2026

2.75"
Estimated 2.75"
2 ground reports Open report →
Radar-estimated hail-size map of the storm over Mc Cook, NE on Aug 20, 2026 Estimated-size surface
Storm date Mc Cook / NE

Aug 20, 2026

2.75"
Estimated 2.75"
5 ground reports Open report →
Radar-estimated hail-size map of the storm over Mc Cook, NE on Aug 14, 2026 Estimated-size surface
Storm date Mc Cook / NE

Aug 14, 2026

0.75"
Estimated 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Mc Cook, NE on Aug 3, 2026 Estimated-size surface
Storm date Mc Cook / NE

Aug 3, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Mc Cook, NE on Jul 30, 2026 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 →
Radar-estimated hail-size map of the storm over Mc Cook, NE on Jul 27, 2026 Estimated-size surface
Storm date Mc Cook / NE

Jul 27, 2026

2.5"
Signatures 2.5" Estimated 1.75"
1 ground report Open report →
Radar-estimated hail-size map of the storm over Mc Cook, NE on Jul 8, 2026 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 →
Radar-estimated hail-size map of the storm over Mc Cook, NE on Jul 2, 2026 Estimated-size surface
Storm date Mc Cook / NE

Jul 2, 2026

1.75"
Signatures 1.75" Estimated 1.5"
1 ground report Open report →
Radar-estimated hail-size map of the storm over Mc Cook, NE on Jun 12, 2026 Estimated-size surface
Storm date Mc Cook / NE

Jun 12, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Mc Cook, NE on May 29, 2026 Estimated-size surface
Storm date Mc Cook / NE

May 29, 2026

1"
Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Mc Cook, NE on May 16, 2026 Estimated-size surface
Storm date Mc Cook / NE

May 16, 2026

1"
Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Mc Cook, NE on Apr 11, 2026 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.