Hail in Flandreau · Jun 27, 2026
NEXRAD logged 0 hail signatures up to 0"; the estimated-size surface reached 0" aloft. Open it on the live map to see the swath over the streets.
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Convective day · Jun 27, 2026 · noon–noon UTC
Severity
The 7th most severe storm Flandreau has seen in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Peak hail signal
- 0 /100
- Homes exposed
- 0 /100
- Ground truth
- 0 /100
Largest radar-indicated size — a signal of damage potential, not confirmation.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
Evidence / storm surfaces
How Flandreau saw the hail — from two instruments
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 signature field The point detections NEXRAD recorded overhead. Each signature marks where the radar saw hail aloft — it is a detection, not a stone measured on the ground.
Estimated size field 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.
The storm in context
Where Jun 27, 2026 sits in Flandreau's hail record.
This was Flandreau's 3rd recorded hail day, arriving 34 days after the May 24, 2026 storm. By severity it ranks 7th of the 7 storms we have logged here. Radar put the day's largest stone over Flandreau at 0" — radar-estimated size aloft.
The Jun 27, 2026 convective day was bigger than Flandreau: the same system put hail over 587 other tracked cities, 131 of them in South Dakota. Nearest: Elkton (17 miles north, up to 0.5"); Dell Rapids (19 miles southwest, up to 0.5"); Edgerton (20 miles southeast, up to 1").
These maps are stills. In the app this date is one of 7 Flandreau 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
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.
For this storm over Flandreau, the NWS report log is empty — a common outcome, since ground reports only happen when someone witnesses the hail and takes the time to call it in. The detection record for the date lives in the radar maps above.
Below the severe threshold
What 0" hail means for Flandreau 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
Flandreau hail history
Other storms in Flandreau.
Estimated-size surface Aug 6, 2026
0.5"
Estimated-size surface Jul 7, 2026
1"
Estimated-size surface Jul 2, 2026
2.5"
Estimated-size surface Jun 29, 2026
1"
Estimated-size surface May 24, 2026
1.25"
NEXRAD surface May 17, 2026
0.5"The next storm won’t wait for you.
Set your territory and alerts today. When hail hits, use Overview to choose your streets and get moving.
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Web trial: 7 days free. Card required. $150/month after the trial unless cancelled.