Current Outlook

3/5/2021 Active weekend followed by cooler and drier conditions

“Two frontal passages over the weekend are expected to bring light rain and mountain snow showers to part of the state along with breezy conditions in the typical windy spots. By next week, a deep cutoff low slides south toward San Francisco, shifting the general storm track south into California and placing Washington on the north side of the jet stream...”

Recent Outlooks

3/1/2021 Mild temperatures and dry conditions mid week

“Warm temperatures and mostly dry conditions are to define the weather through most of the work week, making pleasant conditions for any spring outdoor work. The region is to be influenced by mostly west/southwesterly flow aloft...”

2/26/2021 Active pattern continues with drier conditions east of the Cascades

“Wind and precipitation will taper off for much of Washington Friday night as a weak ridge moves over the region. Upslope light rain and snow showers remain possible in the Cascades and Blues Saturday with snow levels around 2000-3000 feet, but this will be nothing like the extreme snow totals seen Thursday and Friday...”

2/22/2021 An active week followed by potentially drier pattern for the weekend

“A cold front is expected to lower snow levels back below pass level Monday evening with heavy snow expected in the mountains overnight. This cold front and westerly flow behind it should keep rain showers in place for Washington lowlands through Tuesday except in the Columbia Basin and Yakima Valley where conditions will remain dry...”

2/19/2021 Modest atmospheric river to start another week of unsettled weather

“An active pattern is expected to continue to bring precipitation to the Pacific Northwest over the next week. Saturday through Monday, an atmospheric river will aim at the region to bring rain and mountain snow, but with higher snow levels. Saturday and Sunday, this event will be pointed at Vancouver Island, limiting precipitation to the mountains and Western Washington. Monday it shifts south, raising precipitation chances for the rest of the state...”

2/15/2021 Melting in the lowlands but consistent new snow in the mountains

“The pattern that pulled three lowland snow events into the Pacific Northwest over the weekend is coming to an end. Temperatures are expected to moderate this week, with many low elevation locations reaching into the 40s by midweek. Generally northwesterly flow in place thanks to a ridge offshore will continue to bring mountain snow through Tuesday and perhaps some rain showers in western lowlands. Wednesday, the ridge crosses the state to provide dry conditions before a new series of systems sta..”

2/12/2021 Widespread snow this weekend followed by a warming trend

“Light snow is expected to continue primarily throughout the southern half of Washignton during the afternoon Friday before becoming more widespread Friday night into Saturday. This upcoming disturbance is expected to have more moisture embedded within it allowing for higher snowfall totals. Sunday should be dry across most of Washington before a third system brings in more precipitation from the west starting Sunday evening. This third event will have a warm front with it that is expected to bri..”

2/8/2021 COLD temperatures and lowland snow for the end of the work week

“The weather this week will be headlined by cold temperatures and lowland snow. This is thanks to an arctic air mass that is currently invading the upper Midwest...”

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Washington State University