Wind gust 59 mph
1 WSW Buffalo Harper County
“(OUN)”
— NOAA / SPC storm report
/ Storm field report · Harper
Hail in Buffalo · Jun 21, 2026
The estimated-size surface reached 1.5" aloft; NEXRAD logged no point detections over Buffalo that day. Open it on the live map to see the swath over the streets.
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Peak hail signal 1.5" ≈ ping-pong ball · radar-estimated size aloft
Homes in the hail footprint 1,987
Ground reports 5 5 wind
Radar surfaces 1 Estimated size only
Convective day · Jun 21, 2026 · noon–noon UTC
Severity
The 2nd most severe storm Buffalo has seen in the last 12 months
Composite score · 5.1 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
5.1 /10
- Peak hail signal
- 38 /100
- Homes exposed
- 66 /100
- Ground truth
- 83 /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 Buffalo saw the hail — from two instruments
Jun 21, 2026 · Buffalo, OK
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.
Radar-estimated hail size Surface resolved
Estimated size field 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.
Max size
1.5"
Only the radar-estimated size surface resolved for Jun 21, 2026 — this storm produced no NEXRAD point detections over Buffalo, so there is one map to show, not two.
The storm in context
Where Jun 21, 2026 sits in Buffalo's hail record.
This was Buffalo's 8th recorded hail day, arriving 5 days after the Jun 16, 2026 storm. By severity it ranks 2nd of the 12 storms we have logged here. Radar put the day's largest stone over Buffalo at 1.5" — radar-estimated size aloft.
The Jun 21, 2026 convective day was bigger than Buffalo: the same system put hail over 415 other tracked cities, 154 of them in Oklahoma. Nearest: Rosston (15 miles northwest, up to 1.75"); May (18 miles south, up to 0.75"); Gate (20 miles west, up to 1.75").
These maps are stills. In the app this date is one of 12 Buffalo 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
5 reports filed with the NWS
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
5 reports Wind gust 73 mph
1 SW Buffalo Harper County
“(OUN)”
— NOAA / SPC storm report
Wind gust 72 mph
1 SW Buffalo Harper County
“(OUN)”
— NOAA / SPC storm report
Wind gust 68 mph
1 SW Buffalo Harper County
“(OUN)”
— NOAA / SPC storm report
Wind gust 69 mph
Buffalo Harper County
“(OUN)”
— NOAA / SPC storm report
Storm forensics
How the storm moved
Timing and place names from NOAA ground reports
Read from the arrival times and locations of the NOAA ground reports, not a radar-measured storm track.
Hail was reported over 20 minutes, from to .
High damage potential
What 1.5" hail means for Buffalo roofs.
Hail around an inch and a half is capable of cracking shingles, stripping granules, and denting gutters, vents, and siding. Risk is usually greatest near the strongest radar signal, but property-level damage still requires an on-site inspection.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
1,987 homes × $12,000 avg. claim
Potential roof exposure
$24M
Potential roof exposure — 1,987 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 10 jobs
- Illustrative work
- ~$150K
Close just 0.5% of the 1,987 homes in this footprint at the average $15,000 roof job. Illustrative math, not a projection — your results depend on your outreach and how the market responds.
Claim window
June 2028
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.
Names and phones for every home in the footprint: at most $417 on top of the $150 plan.
Buffalo hail history
Other storms in Buffalo.
12 recorded storm days in Buffalo, OK
Estimated-size surface Storm date Buffalo / OK
Sep 12, 2026
2.5" Estimated 2.5"
2 ground reports Open report →
Estimated-size surface Storm date Buffalo / OK
Aug 26, 2026
0.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Buffalo / OK
Jun 26, 2026
2.5" Signatures 2.5" Estimated 1.5"
No ground reports filed Open report →
Estimated-size surface Storm date Buffalo / OK
Jun 24, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Buffalo / OK
Jun 16, 2026
0.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Buffalo / OK
Jun 12, 2026
1" Estimated 1"
No ground reports filed Open report →
Estimated-size surface Storm date Buffalo / OK
Jun 3, 2026
1.5" Signatures 1.5" Estimated 1"
No ground reports filed Open report →
Estimated-size surface Storm date Buffalo / OK
Jun 1, 2026
1.75" Signatures 1.75" Estimated 1"
No ground reports filed Open report →
Estimated-size surface Storm date Buffalo / OK
May 9, 2026
1" Signatures 1" Estimated 1"
No ground reports filed Open report →
Estimated-size surface Storm date Buffalo / OK
Mar 10, 2026
1.5" Estimated 1.5"
No ground reports filed Open report →
Estimated-size surface Storm date Buffalo / OK
Mar 3, 2026
1" Signatures 1" Estimated 1"
1 ground report Open report →
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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For iPhone. Android coming soon.
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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 tells you where to look. Only an inspection confirms damage at an address. Last updated Sep 13, 2026.