Bottom line, temperatures will really drop late Saturday night into Sunday. On Saturday, a wave of low pressure will provide the lift for some light rain across SE OK and SW AR, with a wintry mix likely throughout NE OK and NW AR. Precipitation amounts look to be fairly light, mainly a few tenths of an inch areawide. We're not expecting major accumulations north of I-40, possibly a dusting at the most. The River Valley will see rain, and then slowly transition by the late afternoon to a mix of rain and snow. A cold rain is anticipated south of the River Valley.

Right now, a blocking pattern is taking hold of the West Coast, allowing polar air to spill south. Until the block is removed, we'll continue to see reinforcing shots of cold air come our way. The GFS continues to be active next week with another storm system coming into focus for Tuesday or Wednesday. The cold air won't be in question, so snowfall would be likely, but right now the time of the event is not clear. Keep up with the 40/29 Super Doppler Storm Team this weekend for the latest.