Forecasters say thunderstorms are expected throughout the day in parts of Oklahoma, and some could be severe.
The National Weather Service in Norman says the storms could bring wind gusts of up to 60 mph along with heavy rainfall and frequent lightning. The storms are predicted to persist through Saturday.
Multiple vehicle crashes were reported around the Oklahoma City area as the storms moved in Friday morning. The Oklahoma Highway Patrol reported several crashes on Interstate 40 in the area, including a rollover crash that has blocked traffic.