Today’s weather will be dry and sunny with once again very mild temperatures for the end of February before conditions begin to deteriorate tonight, along with increasing clouds, afternoon highs today should top out in the mid 50’s. A weak weather system will traverse the state tonight bringing with it a 30% chance of rain and breezy conditions out of the northwest 10-20 mph.
Breezy conditions will continue on Saturday as cooler air rushes into the Wenatchee Valley and Columbia Basin across the Cascades behind this front. Wind gusts of 30 to 35 mph look plausible across the exposed terrain of the Columbia Basin on Saturday with gusts in the Wenatchee area around 25 mph. Under mostly sunny skies, high temperatures Saturday will top out in the upper 40’s. A Winter Weather Advisory will be issued today for Stevens Pass on the Highway 2 corridor for this evening through Saturday where up to 10 inches of snow could fall accompanied by strong winds.
Sunday will be a dry break day in the wake of the Saturday storm system as a sharply positively tilted ridge of high-pressure stabs into the region like a wedge cleaving the exiting trough into a well-defined split feature with a closed low far to the south over California. This will leave the forecast area high and dry Sunday with mostly sunny skies and high temperatures near 50 degrees.
Monday through Thursday will be a more seasonably active weather period with a parade of surface low pressures marching through southern Canada dragging moisture with them. There is a 20% chance of showers on Monday with highs in the mid 50’s. Tuesday will be our wettest day along with breezy conditions there is a 40% chance of rain with high temperatures in the lower 50’s. Dry weather conditions for Wednesday with warmer temperatures into the mid 50’s. A few more clouds are expected on Thursday with a 20% chance of rain with highs once again in the lower to mid-50’s.