Hail map for Owasso, OK — September 20, 2025
NOAA radar detected hail up to 1.50″ — half dollar size — within 5 miles of Owasso on September 20, 2025.
- Max hail size
- 1.50″
- half dollar
- Impact rating
- 5/10
- from stone size
- Size bands over the city
- 2
- distinct radar bands
- Reached the ground
- 30%
- NOAA POSH probability
- Measured on the ground
- 1.75″
- 3.6 mi away · Trained Spotter
NOAA's Probability of Severe Hail peaked at 30% over Owasso that day — low to moderate: the radar signature was there, ground impact less certain. It is a separate model from the size estimate above: one asks how big the stones were in the storm, the other asks whether they made it down.
Sizes come from NOAA MRMS radar (MESH), which runs about ±0.25″ against ground truth. It is canvass-targeting quality, not claim evidence.
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- The whole state around Owasso, with this swath already on it
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Did hail hit your address?
This page covers Owasso as a whole. Check your own address to see every storm on record for your roof — the date and the stone size for each one — and we'll email you the full report to keep.
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Other towns hit on September 20, 2025
Every Oklahoma city hit on September 20, 2025 →What people on the ground measured in Owasso, OK on September 20, 2025
7 reports filed with the National Weather Service — 2 from trained spotters or officials. These are measured stones, not radar estimates, so they are the closest thing to proof that hail actually reached the ground.
- 1.75″ golf ball size Trained Spotter4 W Owasso, OK · 3.6 mi away8:48 PM CDTTulsa County
Golf ball size hail.
- 1.25″ half dollar size Trained Spotter3 S Collinsville, OK · 3.5 mi away8:35 PM CDTTulsa County
Half dollar size hail.
- 1.25″ half dollar size Public4 W Owasso, OK · 4.4 mi away8:34 PM CDTTulsa County
Report from mPING: Half Dollar (1.25 in.).
- 1.00″ quarter size Public2 W Owasso, OK · 2.1 mi away9:03 PM CDTTulsa County
Report from mPING: Quarter (1.00 in.).
- 1.00″ quarter size Public3 W Owasso, OK · 2.6 mi away8:50 PM CDTTulsa County
Report from mPING: Quarter (1.00 in.).
- 0.75″ penny size Public2 SE Tulsa, OK · 11.4 mi away10:09 PM CDTTulsa County
Report from mPING: Dime (0.75 in.).
- 0.50″ penny size Public2 N Owasso, OK · 2.1 mi away8:37 PM CDTTulsa County
Report from mPING: Half-inch (0.50 in.).
Reports come from the National Weather Service Local Storm Report feed, ingested every 15 minutes. A report records where the observer was, not the full extent of the swath — treat it as evidence about the storm, not about any one roof.
Owasso hail on September 20, 2025
NOAA radar estimated stones up to 1.50 inches — half dollar size — within about 5 miles of Owasso that day, across 2 distinct size bands. Sizes vary street to street inside a single swath.