/ Storm field report · Brown

Hail in Powhattan · May 18, 2026

NEXRAD logged 3 hail signatures up to 0.75"; the estimated-size surface reached 0.5" 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 · the largest NEXRAD radar signature
Homes in the hail footprint 40
Ground reports 0 none filed
Radar surfaces 2 NEXRAD + estimated size

Convective day · May 18, 2026 · noon–noon UTC

Severity

The 7th most severe storm Powhattan has seen in the last 12 months

Composite score · 1.9 / 10
Storm severity score

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

1.9 /10
Peak hail signal
19 /100

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

Homes exposed
32 /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 Powhattan saw the hail — from two instruments

May 18, 2026 · Powhattan, 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.

NEXRAD radar signatures Surface resolved
Map image is still rendering for this surface.

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 0.75" Detections 3
Radar-estimated hail size Surface resolved
Radar-estimated hail-size map of the storm over Powhattan, KS on May 18, 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 0.5"

The storm in context

Where May 18, 2026 sits in Powhattan's hail record.

This was Powhattan's 4th recorded hail day, arriving 1 day after the May 17, 2026 storm. By severity it ranks 7th of the 9 storms we have logged here. Radar put the day's largest stone over Powhattan at 0.75" — the largest NEXRAD radar signature.

The May 18, 2026 convective day was bigger than Powhattan: the same system put hail over 726 other tracked cities, 258 of them in Kansas. Nearest: Netawaka (7 miles south, up to 1"); Wetmore (9 miles southwest, up to 1"); Whiting (9 miles southeast, up to 0.5").

These maps are stills. In the app this date is one of 9 Powhattan 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 Powhattan, 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.

Near the severe threshold

What 0.75" hail means for Powhattan 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.

40 homes × $12,000 avg. claim

Potential roof exposure

$480K

Potential roof exposure — 40 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

Claim window

May 2028

Claims from this storm can typically be filed until around May 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 $8 on top of the $150 plan.

Powhattan hail history

9 recorded storm days in Powhattan, KS

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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 22, 2026.