Wind gust 64 mph
7 N Okobojo Creek Rec A Sully County
“Mesonet station 332 Okobojo (SDDOT). (ABR)”
— NOAA / SPC storm report
Hail in Fort Pierre Apr 22, 2026
Both radar surfaces caught this storm: NEXRAD logged 0 hail signatures up to 1", and the radar-estimated size reached 0.75" aloft.
Largest hailstone
1"
≈ quarter · the largest NEXRAD radar signature Homes in the hail footprint
303
Ground reports
1
1 windThe 9th 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.
3.0 /10
- Hail size
- 25 /100
- Homes exposed
- 50 /100
- Ground truth
- 17 /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
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.
NEXRAD radar signatures
Where NEXRAD flagged hail as the storm passed — point signatures from the radar, which indicate hail overhead rather than confirm what landed.
Max size
1"
Detections
0
Radar-estimated hail size
The modeled maximum hail size across the swath, derived from radar aloft — the largest stone the storm could have supported, which is not necessarily what reached the ground.
Max size
0.75"
Where Apr 22, 2026 sits in Fort Pierre's hail record
This was Fort Pierre's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 9th of the 11 storms we have logged here. Radar put the day's largest stone over Fort Pierre at 1" — the largest NEXRAD radar signature.
The Apr 22, 2026 convective day was bigger than Fort Pierre: the same system put hail over 152 other tracked cities, 35 of them in South Dakota. Nearest: Murdo (21 miles south, up to 1.75"); Pierre (22 miles east, up to 1"); Onida (30 miles northeast, up to 1").
These maps are stills from Fort Pierre's Apr 22, 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
1 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
Reports came from Okobojo Creek Rec A — beyond Fort Pierre itself.
What 1" hail means for Fort Pierre roofs
Quarter-size and larger hail is where asphalt shingle damage starts in earnest: bruised mats and granule loss that homeowners can't see from the ground. Most people inside the footprint won't know their roof was hit until someone inspects it.
What this storm is worth to a roofer
$3.6M
Potential roof exposure — 303 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Illustrative jobs
2 jobs
Illustrative work
~$30K
Claims from this storm can typically be filed until around April 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 Apr 22, 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 28, 2026
1.75" Signatures 1.75" Estimated 1.25"
4
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
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.