Up to 3 inches of snow is expected to fall in the Tri-Cities today, and snow remains in the forecast through Christmas Eve.
The National Weather Service has issued a winter weather advisory through 3 p.m. today in the Tri-Cities, Prosser, Connell and Sunnyside.
Forecasters are calling for 1 to 3 inches of snow. Mountain passes could get up to 6 inches of snow.
Roads are expected to become snow covered with travel becoming difficult at times, officials say.
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Highs are expected to be near 32 degrees today with a north wind around 7 mph.
The chance of precipitation is 90 percent.
On Sunday, forecasters predict a 30 percent chance of snow during the day with a 60 percent chance of snow at night with new accumulation of less than an inch possible.
The extended forecast includes a chance of snow through Friday.