Broken Arrow hail storm history
Tulsa County·NOAA NCEI Storm Events Database·~75-day publication lag
Broken Arrow, located in Tulsa County, has experienced 5 hail events of 1 inch or larger over the past 10 years, averaging 0.5 events annually. The city lies in eastern Oklahoma where the Ozark Plateau interacts with Gulf moisture patterns, creating atmospheric conditions favorable for severe thunderstorm development. The largest recorded hail event in the county reached 1.75 inches on June 30, 2025, a size capable of causing functional damage to standard roof shingles.
Hail in Broken Arrow occurs most frequently during April, May, and June, when organized supercells develop most readily across eastern Oklahoma. Secondary risk exists in March and July. The spring and early summer peak reflects the seasonal availability of atmospheric instability and wind shear needed to sustain rotating thunderstorms capable of producing large hail.
Annual frequency — last 10 years
When hail hits — monthly pattern
Avg events per month · all years · NOAA data
All recorded hail events
Of 253 recorded events, 56 (22%) reached 1.5" or larger — the threshold for likely functional damage on standard asphalt shingles.
Ping pong ball size hail damaged homes and vehicles on the south side of Glenpool.
Golf ball size hail damaged homes and vehicles.
Ping pong ball size hail damaged homes and vehicles.
Half dollar size hail damaged homes and vehicles.
Ping pong ball size hail damaged homes and vehicles.
Hen egg size hail damaged homes and vehicles.
Ping pong ball size hail damaged vehicles and homes.
Half dollar size hail damaged homes and vehicles.
Hail larger than golf ball size damaged homes and vehicles near Preston.
Ping pong ball size hail damaged homes, businesses, and vehicles.
An NWS employee measured hailstones up to 1 1/8 inches in diameter.
Hen egg size hail damaged homes, businesses, and vehicles.
Golf ball size hail damaged vehicles and homes.
Golf ball size hail damaged vehicles and homes.
Large hail damaged vehicles, and the roofs of homes and businesses.
Hail larger than golfball size damaged the roofs of buildings and vehicles.
Broken Arrow's hail event count of 5 events over 10 years reflects the NOAA Storm Events Database reporting density for this area. This relatively modest count is typical for individual cities within Tulsa County, which has 13 documented events ≥1 inch at the county level. Homeowners should note that smaller hail events (0.5–0.75 inch) often go unreported or unrecorded despite causing minor damage. Current-year data is excluded from the annual frequency table until October, when NOAA's Storm Events Database has processed the full hail season accounting for the standard 75-day reporting lag.
NOAA Storm Events Database source