At 2:15 P.M., the National Weather Service issued a tornado watch covering all of northeast Oklahoma until 11 P.M. Sunday.
Very large hail, damaging winds and tornadoes are possible.
You can track the storms as they develop with KRMG's Live Interactive Radar.
Take action and text the word WEATHER to 95920 for severe weather alerts sent to your cell phone.
As a precaution, organizers of MayFest and the Blue Dome Arts Festival made the decision to close both festivals 2 hours early due to the impending weather. Both are closing at 4 P.M.