Hail in Herreid May 31, 2026
Both radar surfaces caught this storm: NEXRAD logged 1 hail signature up to 0.5", and the radar-estimated size reached 0" aloft.
0.5"
≈ pea to penny · the largest NEXRAD radar signature0
0
none filedThe 9th 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.
- Hail size
- 13 /100
- Homes exposed
- 0 /100
- Ground truth
- 0 /100
Largest hailstone — the top predictor of roof damage.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
How Herreid saw the hail — from two instruments
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.
NEXRAD's hail signatures for this storm: the spots the radar detected from above. A detection overhead is not the same thing as a confirmed stone below.
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.
Where May 31, 2026 sits in Herreid's hail record
This was Herreid's 2nd recorded hail day, arriving 1 day after the May 30, 2026 storm. By severity it ranks 9th of the 10 storms we have logged here. Radar put the day's largest stone over Herreid at 0.5" — the largest NEXRAD radar signature.
The May 31, 2026 convective day was bigger than Herreid: the same system put hail over 637 other tracked cities, 61 of them in South Dakota. Nearest: Pollock (12 miles northwest, up to 1"); Eureka (18 miles east, up to 1.75"); Hague (20 miles northeast, up to 1.25").
These maps are stills from Herreid's May 31, 2026 storm. In the Overview app the same surfaces are live — radar updating in real time, radar-estimated hail size as it forms, and NWS spotter reports pinned where they're filed — with a radar replay you can scrub back over any past day.
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.
No ground reports were filed with the National Weather Service for this storm over Herreid. 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.
What 0.5" hail means for Herreid roofs
Hail under three-quarters of an inch stays below the National Weather Service severe threshold and rarely breaks shingles outright. But repeated small-hail events accelerate granule loss and shorten roof life — on older roofs, it's still worth a conversation.
Track hail over Herreid on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Herreid storm history — this May 31, 2026 storm included — sits underneath. When you're ready, draw this storm's footprint and pull highly accurate homeowner contact information for every address inside it.
Highly accurate contact information starting at $0.23 per address — every contact included. Digital leads cost $15–$40. Start with a 7-day free trial — no credit card required. See pricing
10 recorded storm days in Herreid, SD
Other storms in Herreid
Jul 24, 2026
1"
Jul 19, 2026
1.5"
Jul 7, 2026
1.5"
Jul 2, 2026
1.25"
Jun 9, 2026
0.75"
Jun 7, 2026
0.5"
Jun 3, 2026
0.75"
Jun 2, 2026
0.75"
May 30, 2026