/ Storm field report · Aurora

Hail in White Lake · Sep 6, 2026

Hit 6 days ago

The estimated-size surface reached 0.5" aloft; NEXRAD logged no point detections over White Lake that day. Open it on the live map to see the swath over the streets.

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Peak hail signal 0.5" ≈ pea to penny · radar-estimated size aloft
Homes in the hail footprint 0
Ground reports 0 none filed
Radar surfaces 1 Estimated size only

Convective day · Sep 6, 2026 · noon–noon UTC

Severity

The 10th most severe storm White Lake has seen in the last 12 months

Composite score · 0.8 / 10
Storm severity score

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

0.8 /10
Peak hail signal
13 /100

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

Homes exposed
0 /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 White Lake saw the hail — from two instruments

Sep 6, 2026 · White Lake, SD

Two instruments, one storm: NEXRAD logs the point signatures it detected overhead, while the estimated-size surface models how large the hail aloft could have grown. Agreement between them is not guaranteed — the gaps are where the model ran ahead of, or behind, the detections.

Radar-estimated hail size Surface resolved
Radar-estimated hail-size map of the storm over White Lake, SD on Sep 6, 2026 Estimated size field

Radar-estimated maximum hail size across the swath, modeled from radar aloft. It reflects the biggest stone the storm could support, which may differ from what actually fell.

Max size 0.5"

Only the radar-estimated size surface resolved for Sep 6, 2026 — this storm produced no NEXRAD point detections over White Lake, so there is one map to show, not two.

The storm in context

Where Sep 6, 2026 sits in White Lake's hail record.

This was White Lake's 11th recorded hail day, arriving 2 days after the Sep 4, 2026 storm. By severity it ranks 10th of the 11 storms we have logged here. Radar put the day's largest stone over White Lake at 0.5" — radar-estimated size aloft.

The Sep 6, 2026 convective day was bigger than White Lake: the same system put hail over 608 other tracked cities, 33 of them in South Dakota. Nearest: Mount Vernon (15 miles east, up to 0.5"); Platte (17 miles southwest, up to 0.5"); Oacoma (44 miles northwest, up to 0.5").

These maps are stills. In the app this date is one of 11 White Lake 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 White Lake. 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.

Below the severe threshold

What 0.5" hail means for White Lake roofs.

Radar signals under three-quarters of an inch stay below the National Weather Service severe threshold and generally indicate lower roof risk. Older or already-worn materials can still show effects, but radar alone cannot determine whether a specific roof was damaged.

Radar reading · not confirmed damage

White Lake hail history

11 recorded storm days in White Lake, 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 Sep 7, 2026.