/ Storm field report · Cloud

Hail in Jamestown · Sep 12, 2026

Hit 2 days ago

The estimated-size surface reached 1.25" aloft; NEXRAD logged no point detections over Jamestown that day. Open it on the live map to see the swath over the streets.

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Peak hail signal 1.25" ≈ half-dollar · radar-estimated size aloft

Homes in the hail footprint 550

Ground reports 2 2 hail

Radar surfaces 1 Estimated size only

Convective day · Sep 12, 2026 · noon–noon UTC

Severity

The 4th most severe storm Jamestown has seen in the last 12 months

Composite score · 3.7 / 10

Storm severity score

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

3.7 /10

Peak hail signal: 31 /100
Homes exposed: 55 /100
Ground truth: 33 /100

Evidence / storm surfaces

How Jamestown saw the hail — from two instruments

Sep 12, 2026 · Jamestown, 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 map of the storm over Jamestown, KS on Sep 12, 2026 — 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 1.25"

Only the radar-estimated size surface resolved for Sep 12, 2026 — this storm produced no NEXRAD point detections over Jamestown, so there is one map to show, not two.

The storm in context

Where Sep 12, 2026 sits in Jamestown's hail record.

This was Jamestown's 10th recorded hail day, arriving 71 days after the Jul 3, 2026 storm. By severity it ranks 4th of the 10 storms we have logged here. Radar put the day's largest stone over Jamestown at 1.25" — radar-estimated size aloft.

The Sep 12, 2026 convective day was bigger than Jamestown: the same system put hail over 354 other tracked cities, 113 of them in Kansas. Nearest: Randall (11 miles west, up to 1.75"); Scandia (11 miles northeast, up to 1.25"); Concordia (14 miles east, up to 1.75").

These maps are stills. In the app this date is one of 10 Jamestown 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

2 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.

Hail reports

2 reports

Hail size 1"

2 WNW Jamestown Cloud County

8:44 PM UTC

“Pictures sent from EM. (TOP)”
— NOAA / SPC storm report

Hail size 1.25"

Jamestown Cloud County

8:36 PM UTC

“MPING report. (TOP)”
— NOAA / SPC storm report

Damage-capable hail signal

What 1.25" hail means for Jamestown roofs.

Quarter-size and larger hail can bruise asphalt mats, remove granules, and dent exposed soft metal. The mapped footprint identifies an inspection priority area — it does not identify which individual roofs, if any, sustained damage.

Radar reading · not confirmed damage

Roofing exposure

What this storm is worth to a roofer.

550 homes × $12,000 avg. claim

Potential roof exposure

$6.6M

Potential roof exposure — 550 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

Illustrative jobs: 3 jobs
Illustrative work: ~$45K

Close just 0.5% of the 550 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

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 $116 on top of the $150 plan.

Jamestown hail history

10 recorded storm days in Jamestown, KS

← All hail in Jamestown

Radar-estimated hail-size map of the storm over Jamestown, KS on Jul 3, 2026

Estimated-size surface

Storm date Jamestown / KS

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See the hail, review your recommendations, and canvass with Overview on iPhone.

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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 13, 2026.

The 4th most severe storm Jamestown has seen in the last 12 months

How Jamestown saw the hail — from two instruments

Where Sep 12, 2026 sits in Jamestown's hail record.

What people on the ground reported

Hail reports

What 1.25" hail means for Jamestown roofs.

What this storm is worth to a roofer.

Other storms in Jamestown.

Jul 3, 2026

Jun 20, 2026

Jun 8, 2026

May 29, 2026

May 18, 2026

May 16, 2026

Apr 25, 2026

Apr 10, 2026

Apr 9, 2026

Take your next area into the field.