Tuesday night is poised to shatter weather records in the lowlands with temperatures 15 to 20 degrees below normal.
Three to five inches of snow is possible along the I-405 corridor - bitter cold will create dangerous conditions early next week.
Record breaking cold will be dangerous for the unhoused with highs only in the low 20s early next week.
Heavy rain and strong winds in the eastern lowlands and up to 18 inches of snow in the mountain passes.
Wind gusts to 45 MPH will move through the eastside during the late morning and early afternoon.
Another day of heavy rain and strong winds delivering more flooding and local power outages on Monday.
Monday could be stormy for Puget Sound as four days of windy and wet weather starts on Sunday.
A month of rain is expected to fall in the next three days with strong winds on Friday and Saturday.