A shortwave trough of lower pressure will graze the Inland Northwest today as it rides down the backside of a strong high pressure ridge which will bring down some cooler polar continental air. The pressure gradient will tighten across the northern zones with increased northerly winds down the Okanogan Valley, through the Purcell Trench and out over the Columbia Basin. This should help scour out pollutants a little bit across Central and Eastern Washington. Northcentral Washington weather for today calling for sunny skies with light and variable wind with afternoon high temperatures still above normal into the lower 50’s.
For Thursday and Friday, the ridge of high pressure will re-establish itself over the region with mostly sunny skies each day and high temperatures in the mid to upper 50’s.
By this weekend, the Pacific ridge of high pressure begins to move inland allowing some energy and moisture to move over the high pressure ridge to the west. Northcentral Washington will remain dry but, cloud cover will be fairly significant with afternoon high temperatures in the upper 50’s to near 60degrees Saturday and in the upper 50’s for Sunday.
On Veterans Day Monday the Wenatchee Valley will see partly cloudy skies with temperatures just above normal into the lower 50’s. A weak weather system will move in from the west on Tuesday with a chance for scattered showers, highs near 50 degrees.