Up to six inches of snow fell overnight and into Saturday morning in the mountain passes and avalanche danger is high, so people headed up to enjoy the fresh powder were warned to plan for potential closures as crews will likely be doing control work.

The Washington State Department of Transportation brought in extra work crews to help clear the roads.

Snow plows and graders worked overnight to help clear out the accumulated snow and ice on I-90, concentrating on the top where you'll find the most snow.

Traction tires area were required on the pass, but semi trucks had to put on chains, so keep an eye on the side of the road is you see them. It can be dangerous with the icy conditions.

There were a few spinouts, but for the most part people were taking it slow and safe.

KING 5 Chief Meteorologist Jeff Renner expects 1-2 feet of snow to fall at Snoqualmie Summity over the weekend and up to three feet in higher elevations. Renner said the heavy snow will change eventually to occassional snow showers.

In the lowlands, expect mainly rain showers and sunbreaks with the potential of some snow briefly mixed into a heavier shower. The snow levels will hover between 1,000 - 1,500 feet. Foothill locations could see some slushy but brief accumulations. Read the full forecast

Temperatures in the passes will be around 30 degrees, with winds between 20 and 35 mph. Check mountain travel conditions

Increasing rain is likely Sunday and could persist throughout the week.

You can get updated weather anytime by downloading the Seattle Weather app, which has alerts, an interactive radar, and video forecasts. Download the app for iPhone or Android, or get the WeatherCaster app for iPad.

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