/ Storm field report · Pennington

Hail in Wall · Aug 11, 2026

Hit 32 days ago

The estimated-size surface reached 2.75" aloft; NEXRAD logged no point detections over Wall that day. At 2.75" — baseball — this is a severe hail signal associated with roof damage. Open it on the live map to see the swath over the streets.

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Peak hail signal 2.75" ≈ baseball · radar-estimated size aloft

Homes in the hail footprint 1,721

Ground reports 2 2 wind

Radar surfaces 1 Estimated size only

Convective day · Aug 11, 2026 · noon–noon UTC

Severity

The 3rd most severe storm Wall has seen in the last 12 months

Composite score · 6.2 / 10

Storm severity score

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

6.2 /10

Peak hail signal: 69 /100
Homes exposed: 65 /100
Ground truth: 33 /100

Evidence / storm surfaces

How Wall saw the hail — from two instruments

Aug 11, 2026 · Wall, SD

The maps here read the same storm from two angles — point detections from NEXRAD, and modeled hail size aloft. Where the two disagree is informative: it marks where estimated size outran the signatures, or trailed them.

Radar-estimated hail-size map of the storm over Wall, SD on Aug 11, 2026 — The modeled maximum hail size across the swath, derived from radar aloft — the largest stone the storm could have supported, which is not necessarily what reached the ground.

Max size 2.75"

Only the radar-estimated size surface resolved for Aug 11, 2026 — this storm produced no NEXRAD point detections over Wall, so there is one map to show, not two.

The storm in context

Where Aug 11, 2026 sits in Wall's hail record.

This was Wall's 10th recorded hail day, arriving 13 days after the Jul 29, 2026 storm. By severity it ranks 3rd of the 10 storms we have logged here. Radar put the day's largest stone over Wall at 2.75" — radar-estimated size aloft.

The Aug 11, 2026 convective day was bigger than Wall: the same system put hail over 1,041 other tracked cities, 44 of them in South Dakota. Nearest: Quinn (10 miles east, up to 2.5"); Wasta (14 miles northwest, up to 2.25"); Scenic (20 miles southwest, up to 1.5").

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

Wind reports

2 reports

Wind gust 76 mph

3 S Creighton Pennington County

2:40 AM UTC

“(UNR)”
— NOAA / SPC storm report

Wind gust 67 mph

3 S Creighton Pennington County

2:20 AM UTC

“(UNR)”
— NOAA / SPC storm report

Storm forensics

How the storm moved

Timing and place names from NOAA ground reports

Read from the arrival times and locations of the NOAA ground reports, not a radar-measured storm track.

Hail was reported over 20 minutes, from 2:20 AM UTC to 2:40 AM UTC .

Reports came from Creighton — beyond Wall itself.

Severe hail signal

What 2.75" hail means for Wall roofs.

Two-inch-plus hail is capable of puncturing shingles, breaking skylights or windows, and heavily denting soft materials. The strongest radar bands warrant prompt inspection, but neither the signal nor the footprint confirms damage at a specific address.

Radar reading · not confirmed damage

Roofing exposure

What this storm is worth to a roofer.

1,721 homes × $12,000 avg. claim

Potential roof exposure

$21M

Potential roof exposure — 1,721 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

Illustrative jobs: 9 jobs
Illustrative work: ~$135K

Close just 0.5% of the 1,721 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 $361 on top of the $150 plan.

Wall hail history

10 recorded storm days in Wall, SD

← All hail in Wall

Radar-estimated hail-size map of the storm over Wall, SD on Jul 29, 2026

Estimated-size surface

Storm date Wall / SD

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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 12, 2026.

The 3rd most severe storm Wall has seen in the last 12 months

How Wall saw the hail — from two instruments

Where Aug 11, 2026 sits in Wall's hail record.

What people on the ground reported

Wind reports

How the storm moved

What 2.75" hail means for Wall roofs.

What this storm is worth to a roofer.

Other storms in Wall.

Jul 29, 2026

Jul 27, 2026

Jul 7, 2026

Jul 3, 2026

Jul 2, 2026

Jun 28, 2026

Jun 27, 2026

Jun 26, 2026

May 30, 2026

Take your next area into the field.