Recent Outlooks

10/12/2020 Regional rain and wind event Tuesday followed by calming conditions

“The last of this set of frontal systems is expected cross Washington overnight Monday into Tuesday, bringing rain and strong winds to much of the state. Cooler temperatures and lowered snow levels will follow this front, but by the time that happens much of the precipitation will have ended. Wednesday begins a stretch of drier conditions for most, with a ridge of high pressure building offshore through the end of the week...”

10/9/2020 Active fall weather starting this weekend, giving way to drier conditions later next week

“A strong cold front will cross Washington from Friday evening through Saturday. Anticipate a sudden change in weather with widespread rain to the entire state including modest rainfall even in the arid regions of the state...”

10/5/2020 Continued warm and dry conditions with impactful weather for the weekend and beyond

“Weather conditions are expected to remain warm and dry through the week as a broad low amplitude upper ridge rebuilds over the region after a brief transition to a zonal flow regime. This will help to promote calm to light winds, clear skies, and continued night time inversions with low temperatures remaining in the low 40s for the majority of the fruit growing regions...”

10/2/2020 Upper level ridging remains the dominant factor this week, hint of fall weather beyond

“Upper level ridging will remain the dominant weather pattern over Washington during the period. For the weekend, the ridge will weaken somewhat and shift east, allowing for more (but still weak) onshore flow in Western Washington resulting in areas of low clouds and fog there in the mornings through Sunday. A dry cold front is expected to cross the state Sunday, slightly cooling temperatures and increasing winds in the lee of the Cascades...”

9/28/2020 Warm and dry conditions statewide

“As a stark contrast to last weeks active weather, this outlook period is expected to be warm and dry statewide thanks to a robust ridge in place over the Pacific Northwest. Light winds and mostly sunny and mostly clear skies will also prevail through the week, promoting exceptional night time radiational cooling with strong inversions and cool overnight temperatures in locations that generally trend cooler during such conditions, particularly east of the Cascades. ..”

2020 Outlooks-Archive

2019 Outlooks-Archive

2018 Outlooks-Archive

2017 Outlooks-Archive

2016 Outlooks-Archive

2015 Outlooks-Archive

2014 Outlooks-Archive

2013 Outlooks Archive

2012 Outlooks Archive

2011 Outlooks Archive

Washington State University