/ Storm field report · Brown

Hail in Hiawatha · Sep 13, 2026

Hit 1 day ago

The estimated-size surface reached 0.5" aloft; NEXRAD logged no point detections over Hiawatha that day. Open it on the live map to see the swath over the streets.

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Peak hail signal 0.5" ≈ pea to penny · radar-estimated size aloft
Homes in the hail footprint 48
Ground reports 0 none filed
Radar surfaces 1 Estimated size only

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

Severity

The 15th most severe storm Hiawatha has seen in the last 12 months

Composite score · 1.6 / 10
Storm severity score

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

1.6 /10
Peak hail signal
13 /100

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

Homes exposed
34 /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 Hiawatha saw the hail — from two instruments

Sep 13, 2026 · Hiawatha, KS

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.

Radar-estimated hail size Surface resolved
Radar-estimated hail-size map of the storm over Hiawatha, KS on Sep 13, 2026 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 0.5"

Only the radar-estimated size surface resolved for Sep 13, 2026 — this storm produced no NEXRAD point detections over Hiawatha, so there is one map to show, not two.

The storm in context

Where Sep 13, 2026 sits in Hiawatha's hail record.

This was Hiawatha's 20th recorded hail day, arriving 25 days after the Aug 19, 2026 storm. By severity it ranks 15th of the 20 storms we have logged here. Radar put the day's largest stone over Hiawatha at 0.5" — radar-estimated size aloft.

The Sep 13, 2026 convective day was bigger than Hiawatha: the same system put hail over 171 other tracked cities, 11 of them in Kansas. Nearest: Falls City (9 miles northeast, up to 0.5"); Sabetha (11 miles west, up to 0.5"); Robinson (13 miles southeast, up to 0.5").

These maps are stills. In the app this date is one of 20 Hiawatha 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.

For this storm over Hiawatha, the NWS report log is empty — a common outcome, since ground reports only happen when someone witnesses the hail and takes the time to call it in. The detection record for the date lives in the radar maps above.

Below the severe threshold

What 0.5" hail means for Hiawatha roofs.

Radar signals under three-quarters of an inch stay below the National Weather Service severe threshold and generally indicate lower roof risk. Older or already-worn materials can still show effects, but radar alone cannot determine whether a specific roof was damaged.

Radar reading · not confirmed damage

Roofing exposure

What this storm is worth to a roofer.

48 homes × $12,000 avg. claim

Potential roof exposure

$576K

Potential roof exposure — 48 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

Claim window

September 2028

Claims from this storm can typically be filed until around September 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 $10 on top of the $150 plan.

Hiawatha hail history

20 recorded storm days in Hiawatha, KS
Radar-estimated hail-size map of the storm over Hiawatha, KS on Aug 19, 2026 Estimated-size surface
Storm date Hiawatha / KS

Aug 19, 2026

0.75"
Estimated 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Hiawatha, KS on Aug 15, 2026 Estimated-size surface
Storm date Hiawatha / KS

Aug 15, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
NEXRAD radar-signature map of the hail storm over Hiawatha, KS on Jul 29, 2026 NEXRAD surface
Storm date Hiawatha / KS

Jul 29, 2026

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

Jul 3, 2026

1"
Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Hiawatha, KS on Jun 20, 2026 Estimated-size surface
Storm date Hiawatha / KS

Jun 20, 2026

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

Jun 13, 2026

1"
Estimated 1"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Hiawatha, KS on Jun 10, 2026 Estimated-size surface
Storm date Hiawatha / KS

Jun 10, 2026

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

Jun 4, 2026

1"
Signatures 1"
No ground reports filed Open report →
NEXRAD radar-signature map of the hail storm over Hiawatha, KS on May 30, 2026 NEXRAD surface
Storm date Hiawatha / KS

May 30, 2026

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

May 18, 2026

0.75"
Signatures 0.75" Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Hiawatha, KS on May 17, 2026 Estimated-size surface
Storm date Hiawatha / KS

May 17, 2026

1.25"
Signatures 1.25"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Hiawatha, KS on May 16, 2026 Estimated-size surface
Storm date Hiawatha / KS

May 16, 2026

1.75"
Signatures 1.75" Estimated 0.5"
No ground reports filed Open report →
NEXRAD radar-signature map of the hail storm over Hiawatha, KS on Apr 26, 2026 NEXRAD surface
Storm date Hiawatha / KS

Apr 26, 2026

No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Hiawatha, KS on Apr 23, 2026 Estimated-size surface
Storm date Hiawatha / KS

Apr 23, 2026

1.25"
Signatures 1.25" Estimated 0.75"
No ground reports filed Open report →
NEXRAD radar-signature map of the hail storm over Hiawatha, KS on Apr 17, 2026 NEXRAD surface
Storm date Hiawatha / KS

Apr 17, 2026

1"
Signatures 1"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Hiawatha, KS on Apr 11, 2026 Estimated-size surface
Storm date Hiawatha / KS

Apr 11, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
NEXRAD radar-signature map of the hail storm over Hiawatha, KS on Mar 31, 2026 NEXRAD surface
Storm date Hiawatha / KS

Mar 31, 2026

1"
Signatures 1" Estimated 0.5"
No ground reports filed Open report →
NEXRAD radar-signature map of the hail storm over Hiawatha, KS on Mar 6, 2026 NEXRAD surface
Storm date Hiawatha / KS

Mar 6, 2026

No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Hiawatha, KS on Mar 5, 2026 Estimated-size surface
Storm date Hiawatha / KS

Mar 5, 2026

1.75"
Signatures 1.75"
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 14, 2026.