Hail in Herreid · May 30, 2026
NEXRAD logged 0 hail signatures up to 0"; the estimated-size surface had no signal that day. Open it on the live map to see the swath over the streets.
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Convective day · May 30, 2026 · noon–noon UTC
Severity
The 13th most severe storm Herreid 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 Herreid saw the hail — from two instruments
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 signature field Where NEXRAD flagged hail as the storm passed — point signatures from the radar, which indicate hail overhead rather than confirm what landed.
Only the NEXRAD radar-signature surface resolved for May 30, 2026 — the estimated-size swath had no hail signal to model for this storm, so there is one map to show, not two.
The storm in context
Where May 30, 2026 sits in Herreid's hail record.
This was Herreid's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 13th of the 13 storms we have logged here. Radar put the day's largest stone over Herreid at 0" — radar-estimated size aloft.
The May 30, 2026 convective day was bigger than Herreid: the same system put hail over 541 other tracked cities, 41 of them in South Dakota. Nearest: Roscoe (46 miles southeast, up to 0"); Eagle Butte (69 miles southwest, up to 1"); Faith (108 miles southwest, up to 1").
These maps are stills. In the app this date is one of 13 Herreid 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.
The National Weather Service logged no spotter reports for this storm over Herreid. That absence is ordinary — filing a report takes a person on the spot who saw the hail and phoned it in. What stands as the record for this date is the radar above, which caught the storm regardless.
Below the severe threshold
What 0" hail means for Herreid 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
Herreid hail history
Other storms in Herreid.
Estimated-size surface Aug 24, 2026
1.25"
Estimated-size surface Aug 11, 2026
0.5"
Estimated-size surface Aug 8, 2026
2.25"
Estimated-size surface Jul 24, 2026
1"
Estimated-size surface Jul 19, 2026
1.5"
Estimated-size surface Jul 7, 2026
1.5"
Estimated-size surface Jul 2, 2026
1.25"
Estimated-size surface Jun 9, 2026
0.75"
Estimated-size surface Jun 7, 2026
0.5"
Estimated-size surface Jun 3, 2026
0.75"
Estimated-size surface Jun 2, 2026
0.75"
Estimated-size surface May 31, 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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