Weather satellite this morning shows a large closed low off the Washington coast dropping southeast. This low will send a mid-level wave of moisture across the Inland Northwest especially overnight tonight and into Wednesday producing snow for almost all of the Inland Northwest. But, before we get to that, weak lift ahead of a short-wave weather trough is producing an area of light snow from the Wenatchee Valley to the Spokane area. Northcentral Washington weather forecast for today calling for cloudy skies with a 40% chance of intermittent snow showers throughout the day, high temperatures in the lower 30’s.
By tonight into Wednesday morning, a larger mid-level wave tracks across the region for the next round of snow. The best lift with this wave will track across Central and Northeast Washington. There is a 90% chance of snow overnight with 4-6 inches of snow possible in the Wenatchee area, 3-5 inches in Omak and 1-3 inches in Moses Lake. Winter Weather Advisories have been issued with winter driving conditions expected for most of the region through noon on Wednesday.
A break in our active weather is expected on Thursday and Friday with just a chance for isolated snow showers Thursday morning turning mostly cloudy by afternoon with highs in the mid 30’s. Mostly sunny, dry and warmer on Friday with afternoon high temperatures in the upper 30’s.
Then, as a large California storm departs on Saturday, the Polar Jet Stream will migrate north focusing the storm track into Oregon, Idaho, and Washington. At this time, the transport of moisture into the Pacific Northwest does not look particularly strong this weekend or into early next week.
Northcentral Washington weather Saturday-Monday will be mostly cloudy with a 20% chance of rain mixed with snow on Saturday, a 50% chance Sunday night and a 40% chance of rain mixed with snow on Monday with high temperatures each day, unseasonably mild into the upper 30’s and lower 40’s.