Wind gust 112 mph
7 NNW Joe Creek Rec Are Hughes County
“111.8 mph peak wind gust on Ambient Wx Station. (ABR)”
— NOAA / SPC storm report
Hail in Fort Pierre Jun 28, 2026
Hit 36 days agoBoth radar surfaces caught this storm: NEXRAD logged 7 hail signatures up to 1.75", and the radar-estimated size reached 1.25" aloft.
Largest hailstone
1.75"
≈ golf ball · the largest NEXRAD radar signature Homes in the hail footprint
4
Ground reports
4
4 windThe 5th most severe storm Fort Pierre has seen in the last 12 months
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
4.0 /10
- Hail size
- 44 /100
- Homes exposed
- 14 /100
- Ground truth
- 67 /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 Fort Pierre saw the hail — from two instruments
We map this storm two ways: the NEXRAD radar signatures the storm produced overhead, and the radar-estimated size of the hail in the air. The two surfaces don’t have to match — where they diverge is where estimated size aloft ran ahead of, or behind, what the signatures caught.
NEXRAD radar signatures
NEXRAD radar signatures — the point detections the storm produced overhead. A signature is where the radar saw hail, not a confirmed stone on the ground.
Max size
1.75"
Detections
7
Radar-estimated hail size
Maximum hail size as estimated from radar aloft. Treat it as the storm's ceiling — the largest supportable stone — rather than a ground measurement.
Max size
1.25"
Where Jun 28, 2026 sits in Fort Pierre's hail record
This was Fort Pierre's 8th recorded hail day, arriving 1 day after the Jun 27, 2026 storm. By severity it ranks 5th of the 11 storms we have logged here. Radar put the day's largest stone over Fort Pierre at 1.75" — the largest NEXRAD radar signature.
The Jun 28, 2026 convective day was bigger than Fort Pierre: the same system put hail over 348 other tracked cities, 42 of them in South Dakota. Nearest: Murdo (21 miles south, up to 2.5"); Pierre (22 miles east, up to 1.75"); Draper (29 miles south, up to 2.5").
These maps are stills from Fort Pierre's Jun 28, 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.
Wind reports
4 reports Wind gust 70 mph
9 NNW Vivian Lyman County
“Mesonet station 13 Vivian (SDDOT). (ABR)”
— NOAA / SPC storm report
Wind gust 58 mph
9 ESE Rosseau Hughes County
“Mesonet station 333 De Grey Hill (SDDOT). (ABR)”
— NOAA / SPC storm report
Wind gust 65 mph
4 ESE Rosseau Hughes County
“Mesonet station PRFS2 Pierre 16 ESE (SD Mesonet). (ABR)”
— NOAA / SPC storm report
Storm forensics
Read from the arrival times and locations of the NOAA ground reports,
not a radar-measured storm track.
How the storm moved
The storm tracked northeast at roughly 35 mph, based on the timing of ground reports.
Hail was reported over 42 minutes, from to .
Reports came from Joe Creek Rec Are, Vivian, and Rosseau — beyond Fort Pierre itself.
What 1.75" hail means for Fort Pierre roofs
At an inch and a half, hail cracks shingles, strips granules down to the mat, and dents gutters, vents, and siding. A footprint like this typically produces a wave of insurance claims — and the contractor who reaches the homeowner first usually gets the inspection.
What this storm is worth to a roofer
$48K
Potential roof exposure — 4 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage. Claims from this storm can typically be filed until around June 2028 — the window to reach these homeowners while it's still open. Deadlines vary by policy and state.
Track hail over Fort Pierre on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Fort Pierre storm history — this Jun 28, 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
Fort Pierre hail history
← All hail in Fort Pierre 11 recorded storm days in Fort Pierre, SD
Other storms in Fort Pierre
Jul 25, 2026
3.5" Signatures 3.5" Estimated 2"
8
ground reports 
Jul 7, 2026
1" Signatures 1" Estimated 0.75"
No ground reports filed 
Jul 2, 2026
2.25" Signatures 2.25" Estimated 1.5"
2
ground reports 
Jun 27, 2026
1.75" Signatures 1.75" Estimated 0.5"
No ground reports filed 
Jun 26, 2026
1.75" Signatures 1.75" Estimated 1.25"
No ground reports filed 
Jun 9, 2026
1.5" Estimated 1.5"
3
ground reports 
Jun 4, 2026
2.5" Signatures 2.5" Estimated 1.5"
2
ground reports 
Jun 3, 2026
1.5" Signatures 1.5" Estimated 0.75"
No ground reports filed 
Jun 2, 2026
1.75" Signatures 1.75" Estimated 1"
1
ground report 
Apr 22, 2026
1" Signatures 1" Estimated 0.75"
1
ground report
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 surfaces are detections and estimates,
not confirmed damage. Last updated Aug 3, 2026.