The western fringe of a bitter cold arctic airmass is pushing into northeast Oklahoma and northwest Arkansas early this morning, with the leading edge near Interstate 40.
Wind chills will be in the single digits in many locations north of US 412 and as cold advection persists will see a further drop in readings for several hours this morning. Looks like areas near the Kansas and Oklahoma border into extreme northwest Arkansas will see a brief period of wind chills flirting with advisory levels this morning, albeit too marginal and short-duration to justify a wind chill advisory at this time.
In addition, a persistent narrow band of light snow has produced some light accumulation across southwest Missouri with about 2 inches in Springfield.
While this band has trended a bit south over the past few hours, the brunt of anything significant will stay to our north. We will keep mention of flurries into the early morning, but most areas should eventually see clearing skies later today.
Despite that, temperatures will not modify a great deal across northern areas this afternoon, while the arctic boundary should ultimately stall over far southeast Oklahoma this afternoon before making a hasty retreat back to the north tonight into Thursday.
Low-level moisture will increase by Thursday into Friday and while temperatures will warm considerably, widespread low clouds a good bet in this pattern with forecast soundings showing potential for patchy drizzle or light rain by Thursday night.
A weak wave passing just to our south Friday night will lead to an uptick in rain chances especially in southern areas into Saturday.
An influx of warmer and moist air will continue this weekend, though lower dew points to the west should mix east Sunday as another wave passes to the north. This will allow for temps to climb much above normal, into the low 70s in parts of eastern Oklahoma.