Weather 12-3-19


Weather today will feature a weak short wave trough of low pressure pushing through British Columbia. The weather system will brush across the northern Cascades, Northeast corner of Washington, and the Northern Idaho Panhandle this morning. This will result in increased chances of an additional one to two inches of snow at the higher ridges with a smaller proportion measuring only a few tenths of an inch over low elevations. Low stratus clouds and patchy dense fog continues to affect much of the Columbia River Basin, the Wenatchee Valley, Okanogan Valley, and east across the western plains into the Purcell trench. It is still expected that low clouds and fog over much of the region for much of the week. Cloudy skies in our Northcentral Washington forecast today with a 20% chance of rain and even freezing rain late tonight, high temperatures today will warm into the mid to upper 30’s.

The next more active weather disturbance will arrive on Wednesday. The Wenatchee Valley will see cloudy skies with a 20% chance of rain with highs near 40 degrees.

On Thursday and Friday, the upper level weather pattern evolves into a ridge of high pressure as a Pacific low near the West Coast also builds. A warm front will push through the Inland Northwest both days bringing a 20% chance of rain mixed with snow showers and afternoon high temperatures around 40 degrees. Friday night will be our best chance for precipitation with a 40% chance of snow and overnight lows in the lower 30’s.

Quiet weather is expected for the upcoming weekend as a drier northerly flow spreads across the region, helping to clear out most of the showers and cloud cover. We will remain mostly cloudy Saturday but still mild with afternoon high temperatures near 40 degrees. It looks like Sunday will be our warmest day with partly cloudy skies expect highs to reach the lower 40’s.

Mostly sunny skies on Monday with afternoon highs still on the warm side for this time of year near 40 degrees.