A shortwave trough moving through the basically zonal flow has produced an MCS overnight with an associated outflow boundary that has been moving southward across OK this morning. That movement has been slowing down and the boundary will end up in southern and southeastern OK this afternoon. Enough cold advection is seen to expect the cold front to continue to advance to the southeast today, but it should slow down. 700 flow is increasing, at least according to the 12Z RUC H700 height gradient. Big question is the speed of the flow in the upper troposphere.
Tomorrow looks promising as well.
As always, a big ques- tion are mesoscale boundaries associated with today's action but will have to wait and see about those, of course.