The National Weather Service is extending its forecast for freezing rain in the Tri-Cities through 10 a.m. Wednesday.
It predicts a 30 percent chance of freezing rain after 4 p.m. Tuesday, increasing to an 80 percent chance Tuesday night.
Wednesday the chance of rain or freezing rain before 10 a.m. is 60 percent. Little or no ice accumulation is expected.
The weather service warns that Interstates 84 and 82 could be slick and travelers should allow extra travel time.
An air stagnation advisory that has lasted more than a week in the Tri-Cities was lifted Tuesday morning.