FAYETTEVILLE, Ark. (KNWA) — An upper level low is currently centered over Southern Kansas this morning with a well-pronounced dry slot in the mid levels expanding across much of Eastern Oklahoma and into Western Arkansas. More widespread rain continues to shift to the east with areas of drizzle persisting in near saturated low level air mass, and this will be the overall trend for today. Some additional light rain is likely to expand back into parts of Northeast Oklahoma and Northwest Arkansas later today into this evening as deeper moisture wraps around the upper low, but overall amounts of rain will be on the light side with a tenth of an inch at most. Overcast skies will keep temperatures from going much of anywhere today.
There will be a gradual clearing from the west tonight and Friday, though how much remains questionable. Areas that see substantial clearing tonight could see areas of dense fog, however the current forecast is more pessimistic with clearing trends. Clearing should eventually work into Eastern Oklahoma Friday, but would not be surprised if clouds persisted much of the day over Western Arkansas. A notable warmup will take place Friday where skies clear sufficiently.
Much warmer temperatures are likely for all areas Saturday as a more progressive upper pattern gets underway, with our area under a downslope regime ahead of an approaching system in northwest flow aloft. A cold front associated will move through by Sunday with temperatures falling back to near or a tad below normal. Deep mixing within the post-frontal air mass will promote gusty northwest winds Sunday afternoon.