/ Storm field report · Harper

Hail in Harper · Oct 13, 2026

Hit 9 days ago

The estimated-size surface reached 1.5" aloft; NEXRAD logged no point detections over Harper that day. Open it on the live map to see the swath over the streets.

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Peak hail signal 1.5" ≈ ping-pong ball · radar-estimated size aloft
Homes in the hail footprint 1,277
Ground reports 0 none filed
Radar surfaces 1 Estimated size only

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

Severity

The 6th most severe storm Harper has seen in the last 12 months

Composite score · 3.8 / 10
Storm severity score

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

3.8 /10
Peak hail signal
38 /100

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

Homes exposed
62 /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 Harper saw the hail — from two instruments

Oct 13, 2026 · Harper, KS

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.

Radar-estimated hail size Surface resolved
Radar-estimated hail-size map of the storm over Harper, KS on Oct 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 1.5"

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

The storm in context

Where Oct 13, 2026 sits in Harper's hail record.

This was Harper's 19th recorded hail day, arriving 24 days after the Sep 19, 2026 storm. By severity it ranks 6th of the 19 storms we have logged here. Radar put the day's largest stone over Harper at 1.5" — radar-estimated size aloft.

The Oct 13, 2026 convective day was bigger than Harper: the same system put hail over 183 other tracked cities, 57 of them in Kansas. Nearest: Spivey (7 miles north, up to 1.5"); Norwich (11 miles northeast, up to 1.25"); Attica (13 miles southwest, up to 2.25").

These maps are stills. In the app this date is one of 19 Harper 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.

Nobody on the ground filed a report over Harper for this date, which says more about who was watching than about the storm: spotter reports only exist where there is an observer. The radar surfaces above carry the evidence for this one.

High damage potential

What 1.5" hail means for Harper roofs.

Hail around an inch and a half is capable of cracking shingles, stripping granules, and denting gutters, vents, and siding. Risk is usually greatest near the strongest radar signal, but property-level damage still requires an on-site inspection.

Radar reading · not confirmed damage

Roofing exposure

What this storm is worth to a roofer.

1,277 homes × $12,000 avg. claim

Potential roof exposure

$15M

Potential roof exposure — 1,277 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

Illustrative jobs
6 jobs
Illustrative work
~$90K

Close just 0.5% of the 1,277 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

October 2028

Claims from this storm can typically be filed until around October 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 $268 on top of the $150 plan.

Harper hail history

Other storms in Harper.

19 recorded storm days in Harper, KS
← All hail in Harper
Radar-estimated hail-size map of the storm over Harper, KS on Sep 19, 2026 Estimated-size surface
Storm date Harper / KS

Sep 19, 2026

1"
Estimated 1"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Harper, KS on Sep 15, 2026 Estimated-size surface
Storm date Harper / KS

Sep 15, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Harper, KS on Sep 12, 2026 Estimated-size surface
Storm date Harper / KS

Sep 12, 2026

2.5"
Estimated 2.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Harper, KS on Jul 11, 2026 Estimated-size surface
Storm date Harper / KS

Jul 11, 2026

1.25"
Signatures 1.25" Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Harper, KS on Jun 26, 2026 Estimated-size surface
Storm date Harper / KS

Jun 26, 2026

1"
Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Harper, KS on Jun 25, 2026 Estimated-size surface
Storm date Harper / KS

Jun 25, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Harper, KS on Jun 21, 2026 Estimated-size surface
Storm date Harper / KS

Jun 21, 2026

2"
Estimated 2"
3 ground reports Open report →
Radar-estimated hail-size map of the storm over Harper, KS on Jun 20, 2026 Estimated-size surface
Storm date Harper / KS

Jun 20, 2026

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

Jun 18, 2026

1.25"
Estimated 1.25"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Harper, KS on Jun 13, 2026 Estimated-size surface
Storm date Harper / KS

Jun 13, 2026

1.25"
Estimated 1.25"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Harper, KS on Jun 1, 2026 Estimated-size surface
Storm date Harper / KS

Jun 1, 2026

1"
Signatures 1"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Harper, KS on May 30, 2026 Estimated-size surface
Storm date Harper / KS

May 30, 2026

2.5"
Signatures 2.5" Estimated 1.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Harper, KS on May 29, 2026 Estimated-size surface
Storm date Harper / 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 Harper, KS on May 18, 2026 Estimated-size surface
Storm date Harper / KS

May 18, 2026

2"
Estimated 2"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Harper, KS on Apr 17, 2026 Estimated-size surface
Storm date Harper / KS

Apr 17, 2026

2.5"
Signatures 2.5" Estimated 1.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Harper, KS on Mar 10, 2026 Estimated-size surface
Storm date Harper / KS

Mar 10, 2026

1.25"
Estimated 1.25"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Harper, KS on Mar 3, 2026 Estimated-size surface
Storm date Harper / KS

Mar 3, 2026

1.75"
Signatures 1.75" Estimated 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Harper, KS on Jan 10, 2026 Estimated-size surface
Storm date Harper / KS

Jan 10, 2026

0.5"
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 Oct 14, 2026.