Seminole County, OK tornado warnings

How many tornado warnings does Seminole County get?

From 2016 to 2025, the National Weather Service included Seminole County in 45 tornado warnings, about 4.5 a year. Severe thunderstorm warnings were more common: 356 severe thunderstorm warnings, about 36 a year. Since the Weather Service started the tag in 2021, 11 severe thunderstorm warnings that included Seminole County were tagged destructive (winds of 80 mph or more, or hail 2.75 inches or larger) for at least part of the warned area.

The table runs from 2008, the first full year the National Weather Service drew an outline around every warning.

Tornado history of Seminole County

65 tornadoes have been recorded in Seminole County since 1950: 16 rated 0, 21 rated 1, 16 rated 2, 9 rated 3, 3 rated 4 on the F or EF scale. Along their full paths in Oklahoma, these tornadoes killed 2 people and injured 78. The most came in May (29) and June (10).

Strongest: F4 on September 14, 1957, 67.5 miles long in Oklahoma, 2 deaths; F4 on May 17, 1981, 33.6 miles long in Oklahoma.

Most recent tornadoes

* From National Weather Service Storm Events reports; the rating can still change.

Other storms in Seminole County

Storm reports in Seminole County in the NOAA Storm Events Database through Jun 30, 2026. The largest hail reported in the county was 4.5 inches across.

Recent hail, wind and flash floods

• Jun 21, 2026 · Thunderstorm wind, 70 mph · Cromwell, OK
• Apr 24, 2026 · Hail, 2.5 in · Konawa, OK
• Apr 3, 2026 · Thunderstorm wind, 81 mph · Little, OK
• Jan 8, 2026 · Hail, 1 in · Cromwell, OK
• Aug 19, 2025 · Thunderstorm wind, 70 mph · Wewoka, OK
• May 19, 2025 · Hail, 2.25 in · Seminole, OK