A dry northerly weather flow aloft persists over Northcentral Washington this morning as the recent frontal system and low pressure trough carves its way southward into the Four Corners region of the Southwestern U.S. With the Arctic air mass still in place, and mostly clear skies with light winds, strong radiational cooling is taking place this morning. Dry weather will continue across the Inland Northwest today as a shortwave ridge of high pressure quickly passes through. Look for increasing high clouds later today with afternoon high temperatures still unseasonably cold in the upper 30’s to near 40 degrees.
Thursday will be unseasonably chilly as well with mostly sunny skies, high temperatures tomorrow will mainly be in the mid 40’s. Friday through Tuesday, the weather pattern will not change much over the weekend and into next week other than a slow warming trend. A blocking ridge of high pressure will remain off the coast in the Eastern Pacific. This will keep the Inland Northwest under a dry northwest flow. The atmosphere will also remain relatively dry.
The Wenatchee Valley, Columbia Basin and Okanogan County can expect sunny skies both Friday and Saturday with a slow warmup, high temperatures Friday near 50 degrees and into the lower and mid 50’s on Saturday. Even warmer temperatures for Sunday and Monday under partly cloudy skies we will see afternoon high temperatures in the mid to upper 50’s.
More of the same weather for Tuesday with mostly sunny skies and afternoon high temperatures in the mid to upper 50’s.