A surface front is moving south-eastward through NW OK this morning, reaching OKC by 18Z. Convection is forecast to initiate 21-22Z along the front which will most likely be south/east of Norman by that time. Storms will likely be severe along the line from NE OK down possibly through south-central OK and eastward.
Some elevated storms are possible overnight into early Saturday morning over central to NE OK. But then after, the afternoon convection will likely be held to along a stationary front further south/east near north Texas into SE OK, along a similar line as the previous day.
An upper level system progressing over the SouthWest will help to kick off some storms over western and northern OK Sunday, along with the return of lower-level moisture as the front lifts back up. Some rain is possible in the overnight Saturday into early Sunday morning hours, before afternoon convection storms and showers likely through the evening into the late night hours.
Monday and Tuesday a couple more upper-level waves move through showing chances of storms in region, though might set up too far east again.