/ Storm field report · McPherson

Hail in Eureka · Aug 29, 2026

Hit 14 days ago

NEXRAD logged 0 hail signatures up to 0"; the estimated-size surface reached 1.75" aloft. Open it on the live map to see the swath over the streets.

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Peak hail signal 1.75" ≈ golf ball · radar-estimated size aloft
Homes in the hail footprint 1,453
Ground reports 1 1 hail
Radar surfaces 2 NEXRAD + estimated size

Convective day · Aug 29, 2026 · noon–noon UTC

Severity

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

Composite score · 4.5 / 10
Storm severity score

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

4.5 /10
Peak hail signal
44 /100

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

Homes exposed
63 /100

How many homes sit inside the storm's footprint.

Ground truth
17 /100

Independent storm reports filed with the NWS.

Evidence / storm surfaces

How Eureka saw the hail — from two instruments

Aug 29, 2026 · Eureka, SD

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
NEXRAD radar-signature map of the hail storm over Eureka, SD on Aug 29, 2026 Radar signature field

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" Detections 0
Radar-estimated hail size Surface resolved
Radar-estimated hail-size map of the storm over Eureka, SD on Aug 29, 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 1.75"

The storm in context

Where Aug 29, 2026 sits in Eureka's hail record.

This was Eureka's 13th recorded hail day, arriving 5 days after the Aug 24, 2026 storm. By severity it ranks 4th of the 15 storms we have logged here. Radar put the day's largest stone over Eureka at 1.75" — radar-estimated size aloft.

The Aug 29, 2026 convective day was bigger than Eureka: the same system put hail over 113 other tracked cities, 26 of them in South Dakota. Nearest: Ashley (14 miles north, up to 0.75"); Bowdle (29 miles south, up to 1.25"); Tolstoy (41 miles south, up to 2.5").

These maps are stills. In the app this date is one of 15 Eureka 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

1 report 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

1 report
Hail size 1.75"
Eureka McPherson County

“(ABR)”

— NOAA / SPC storm report

High damage potential

What 1.75" hail means for Eureka 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.

1,453 homes × $12,000 avg. claim

Potential roof exposure

$17M

Potential roof exposure — 1,453 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

Illustrative jobs
7 jobs
Illustrative work
~$105K

Close just 0.5% of the 1,453 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

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 $305 on top of the $150 plan.

Eureka hail history

Other storms in Eureka.

15 recorded storm days in Eureka, SD
← All hail in Eureka
Radar-estimated hail-size map of the storm over Eureka, SD on Sep 6, 2026 Estimated-size surface
Storm date Eureka / SD

Sep 6, 2026

1.5"
Estimated 1.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Eureka, SD on Sep 4, 2026 Estimated-size surface
Storm date Eureka / SD

Sep 4, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Eureka, SD on Aug 24, 2026 Estimated-size surface
Storm date Eureka / SD

Aug 24, 2026

0.75"
Estimated 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Eureka, SD on Aug 12, 2026 Estimated-size surface
Storm date Eureka / SD

Aug 12, 2026

1.5"
Estimated 1.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Eureka, SD on Aug 8, 2026 Estimated-size surface
Storm date Eureka / SD

Aug 8, 2026

2"
Estimated 2"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Eureka, SD on Jul 25, 2026 Estimated-size surface
Storm date Eureka / SD

Jul 25, 2026

0.5"
Estimated 0.5"
2 ground reports Open report →
Radar-estimated hail-size map of the storm over Eureka, SD on Jul 19, 2026 Estimated-size surface
Storm date Eureka / SD

Jul 19, 2026

2.75"
Estimated 2.75"
1 ground report Open report →
Radar-estimated hail-size map of the storm over Eureka, SD on Jul 7, 2026 Estimated-size surface
Storm date Eureka / SD

Jul 7, 2026

2.5"
Signatures 2.5" Estimated 1.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Eureka, SD on Jul 4, 2026 Estimated-size surface
Storm date Eureka / SD

Jul 4, 2026

1.75"
Signatures 1.75" Estimated 1"
1 ground report Open report →
Radar-estimated hail-size map of the storm over Eureka, SD on Jul 2, 2026 Estimated-size surface
Storm date Eureka / SD

Jul 2, 2026

1.5"
Signatures 1.5" Estimated 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Eureka, SD on Jun 9, 2026 Estimated-size surface
Storm date Eureka / SD

Jun 9, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Eureka, SD on Jun 3, 2026 Estimated-size surface
Storm date Eureka / SD

Jun 3, 2026

1"
Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Eureka, SD on Jun 2, 2026 Estimated-size surface
Storm date Eureka / SD

Jun 2, 2026

1.25"
Signatures 1.25" Estimated 0.75"
1 ground report Open report →
Radar-estimated hail-size map of the storm over Eureka, SD on May 31, 2026 Estimated-size surface
Storm date Eureka / SD

May 31, 2026

1.75"
Signatures 1.75" Estimated 1"
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 7, 2026.