/ Storm field report · Douglas

Hail in Platte · Aug 17, 2026

Hit 26 days ago

The estimated-size surface reached 1" aloft; NEXRAD logged no point detections over Platte that day. Open it on the live map to see the swath over the streets.

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Peak hail signal 1" ≈ quarter · radar-estimated size aloft
Homes in the hail footprint 198
Ground reports 0 none filed
Radar surfaces 1 Estimated size only

Convective day · Aug 17, 2026 · noon–noon UTC

Severity

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

Composite score · 2.6 / 10
Storm severity score

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

2.6 /10
Peak hail signal
25 /100

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

Homes exposed
46 /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 Platte saw the hail — from two instruments

Aug 17, 2026 · Platte, 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 Surface resolved
Radar-estimated hail-size map of the storm over Platte, SD on Aug 17, 2026 Estimated size field

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 1"

Only the radar-estimated size surface resolved for Aug 17, 2026 — this storm produced no NEXRAD point detections over Platte, so there is one map to show, not two.

The storm in context

Where Aug 17, 2026 sits in Platte's hail record.

This was Platte's 10th recorded hail day, arriving 14 days after the Aug 3, 2026 storm. By severity it ranks 6th of the 13 storms we have logged here. Radar put the day's largest stone over Platte at 1" — radar-estimated size aloft.

The Aug 17, 2026 convective day was bigger than Platte: the same system put hail over 428 other tracked cities, 29 of them in South Dakota. Nearest: White Lake (17 miles northeast, up to 0.75"); Lake Andes (20 miles southeast, up to 0.75"); Armour (21 miles east, up to 0.75").

These maps are stills. In the app this date is one of 13 Platte 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.

No ground reports were filed with the National Weather Service for this storm over Platte. That is common: a report depends on someone being there to see it and take the time to call it in. The radar surfaces above are the record here — the storm was detected from above even though no one on the ground logged it.

Damage-capable hail signal

What 1" hail means for Platte 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.

198 homes × $12,000 avg. claim

Potential roof exposure

$2.4M

Potential roof exposure — 198 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

Illustrative jobs
1 job
Illustrative work
~$15K

Close just 0.5% of the 198 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 $42 on top of the $150 plan.

Platte hail history

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

Sep 6, 2026

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

Sep 1, 2026

1.25"
Estimated 1.25"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Platte, SD on Aug 23, 2026 Estimated-size surface
Storm date Platte / SD

Aug 23, 2026

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

Aug 3, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Platte, SD on Jul 6, 2026 Estimated-size surface
Storm date Platte / SD

Jul 6, 2026

1"
Signatures 1" Estimated 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Platte, SD on Jul 2, 2026 Estimated-size surface
Storm date Platte / SD

Jul 2, 2026

1.25"
Signatures 1.25" Estimated 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Platte, SD on Jun 30, 2026 Estimated-size surface
Storm date Platte / SD

Jun 30, 2026

1"
Signatures 1" Estimated 0.75"
1 ground report Open report →
Radar-estimated hail-size map of the storm over Platte, SD on Jun 27, 2026 Estimated-size surface
Storm date Platte / SD

Jun 27, 2026

1"
Signatures 1" Estimated 0.5"
1 ground report Open report →
Radar-estimated hail-size map of the storm over Platte, SD on Jun 9, 2026 Estimated-size surface
Storm date Platte / SD

Jun 9, 2026

0.75"
Estimated 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Platte, SD on Jun 4, 2026 Estimated-size surface
Storm date Platte / SD

Jun 4, 2026

0.75"
Signatures 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Platte, SD on Jun 3, 2026 Estimated-size surface
Storm date Platte / SD

Jun 3, 2026

1"
Signatures 1" Estimated 0.75"
1 ground report Open report →
Radar-estimated hail-size map of the storm over Platte, SD on May 17, 2026 Estimated-size surface
Storm date Platte / SD

May 17, 2026

1"
Signatures 1" Estimated 0.75"
1 ground report 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.