/ Storm field report · Pottawatomie

Hail in Onaga · 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 84
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 Onaga has seen in the last 12 months

Composite score · 2.1 / 10
Storm severity score

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

2.1 /10
Peak hail signal
19 /100

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

Homes exposed
39 /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 Onaga saw the hail — from two instruments

Aug 13, 2026 · Onaga, KS

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.

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

NEXRAD's hail signatures for this storm: the spots the radar detected from above. A detection overhead is not the same thing as a confirmed stone below.

Max size 0" Detections 0
Radar-estimated hail size Surface resolved
Radar-estimated hail-size map of the storm over Onaga, KS on Aug 13, 2026 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 0.75"

The storm in context

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

This was Onaga's 11th recorded hail day, arriving 36 days after the Jul 8, 2026 storm. By severity it ranks 11th of the 13 storms we have logged here. Radar put the day's largest stone over Onaga at 0.75" — radar-estimated size aloft.

The Aug 13, 2026 convective day was bigger than Onaga: the same system put hail over 437 other tracked cities, 62 of them in Kansas. Nearest: Junction City (49 miles southwest, up to 1"); Dwight (52 miles south, up to 0.5"); Abilene (55 miles southwest, up to 0.75").

These maps are stills. In the app this date is one of 13 Onaga 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 Onaga. 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 Onaga 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.

84 homes × $12,000 avg. claim

Potential roof exposure

$1M

Potential roof exposure — 84 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

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 $18 on top of the $150 plan.

Onaga hail history

13 recorded storm days in Onaga, KS
Radar-estimated hail-size map of the storm over Onaga, KS on Aug 18, 2026 Estimated-size surface
Storm date Onaga / KS

Aug 18, 2026

2.5"
Estimated 2.5"
2 ground reports Open report →
Radar-estimated hail-size map of the storm over Onaga, KS on Aug 15, 2026 Estimated-size surface
Storm date Onaga / KS

Aug 15, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Onaga, KS on Jul 8, 2026 Estimated-size surface
Storm date Onaga / KS

Jul 8, 2026

1.75"
Signatures 1.75" Estimated 1"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Onaga, KS on Jul 4, 2026 Estimated-size surface
Storm date Onaga / KS

Jul 4, 2026

1.5"
Signatures 1.5" Estimated 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Onaga, KS on Jul 3, 2026 Estimated-size surface
Storm date Onaga / KS

Jul 3, 2026

1.5"
Signatures 1.5" Estimated 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Onaga, KS on Jun 13, 2026 Estimated-size surface
Storm date Onaga / KS

Jun 13, 2026

1.25"
Estimated 1.25"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Onaga, KS on Jun 4, 2026 Estimated-size surface
Storm date Onaga / KS

Jun 4, 2026

1.75"
Signatures 1.75" Estimated 1"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Onaga, KS on May 29, 2026 Estimated-size surface
Storm date Onaga / KS

May 29, 2026

1"
Signatures 1" Estimated 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Onaga, KS on May 18, 2026 Estimated-size surface
Storm date Onaga / KS

May 18, 2026

1.5"
Signatures 1.5" Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Onaga, KS on May 17, 2026 Estimated-size surface
Storm date Onaga / KS

May 17, 2026

1"
Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Onaga, KS on Apr 26, 2026 Estimated-size surface
Storm date Onaga / KS

Apr 26, 2026

1.75"
Signatures 1.75" Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Onaga, KS on Apr 9, 2026 Estimated-size surface
Storm date Onaga / KS

Apr 9, 2026

1"
Signatures 1" Estimated 0.5"
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 Aug 19, 2026.