Drivers should plan for icy road conditions as a cold front brings freezing temperatures and a chance of light snow showers overnight into Tuesday morning.
"We're already seeing areas of snow west of the Cascades, and not just in the foothills," said KING 5 Chief Meteorologist Jeff Renner.
A band of mixed rain and light snow showers is moving from north to south through Puget Sound late Monday. Low temperatures will be in the upper 20s to low 30s around the Puget Sound area.
No more than a trace of snow is likely within 3-5 miles of the Sound, said Renner. Spotty accumulations and possibly up to an inch or two may occur on inland hills 3-5 miles inland, around 200-400 feet or more above sea level.
"The exception will be in Whatcom, Skagit and possibly north Snohomish counties, where some light snow could fall right at sea level. Again, amounts will likely be minor - an inch or two at most," said Renner.
Wind gusts could reach 20-40 mph over Whatcom, San Juan and possibly northern Island counties with possible higher gusts reaching 45 or 50 mph. Sustained winds of 15-30 mph are possible over the rest of the Puget Sound area.
"Expect winds to continue to increase overnight - strongest in Whatcom, San Juan and Island counties," said Renner.
Overnight into Tuesday, a push of that cold air is likely to set off local flurries or light snow as it surges southward into Puget Sound. Right now, areas of light snow is falling around Camano Island to Arlington. Any such snow shouldn't last long, resulting in an inch or two of snow at most.
"Tuesday will be mostly sunny and cold," said Renner. "If slushy accumulations form (mainly on inland, less-travelled streets) some ice could form by morning."
Renner says the rest of the week looks sunny and even colder, except for a slight chance of snow flurries later Thursday evening into Friday morning. Highs will be mostly in the lower to mid 30s with lows in the teens and 20s.
So far, one school district will be delayed for Tuesday morning. The Oaksville District in Grays Harbor County will be two hours late.