Mainly dry weather continues across most of the region early this morning as a shortwave high-pressure ridge quickly passes through the Inland Northwest. Hi-resolution weather models are picking up on our next storm system currently over the Gulf of Alaska moving southeast. Given the very cold air mass already in place, it won`t take much forcing at all to generate light snow showers by this afternoon. In Northcentral Washington today, we can expect mostly cloudy skies and a 40% chance of snow during the afternoon and this evening with high temperatures in the upper 20’s. Total snow accumulation for the Wenatchee Valley by tomorrow will be around an inch or less. The focus of this weather system will be along and especially south of the I-90 corridor where potentially 6-10 inches of snow could fall.
As the storm system moves away on Wednesday, we could still see a 30% chance of snow with high temperatures in the lower 30’s.
A cold pool of air will sink down from Canada on Thursday afternoon but, not before we see sunny skies during the day with highs in the lower 30’s. Thursday night, with the clear skies and cold air in place, expect overnight lows to drop down into the lower teens.
On Friday and right through the upcoming weekend, expect a cold and snowy weather pattern to arrive with a 40% chance of snow showers each day with highs in the lower 30’s and overnight low temperatures in the lower 20’s.