Forecast: More snow may move in Wednesday night, Thursday

Potential for a second helping of snow did not materialize tonight for most of us even after this morning's initial storm.

We still have some flurries across the sound and some relatively heavy snow over Port Angeles and the eastern side of the strait.  There is a Winter Storm Warning for the eastern strait until 9am and another inch or two of snow could fall.

Tuesday forecast details

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Meteorologist Nick Allard

I've already seen reports of 4"+ in Port Angeles.  From there the light snow showers and flurries we have across parts of the central/south sound will end this morning.  So far most areas are just above freezing with the exception of Everett. However, spotty ice is possible all over so keep that in mind on your way out this morning. Visibility has been low at times as well, so again with temps hovering around freezing with some fog, be careful. Then this afternoon we'll see at least partly sunny skies in the mid-30s.  Cold north wind will be a little gusty at times around 10-20 mph.

  • Spotty morning flurries
  • Dry and cold Tuesday
  • Heavier snow possible Thursday

Overnight tonight we'll drop into the upper-20s and lower-30s with mostly sunny skies in the afternoon.

We'll be watching for Wednesday night and Thursday for another potential for accumulating snow as a weather system moves in.  Forecast models point to significant accumulations being possible before the snow turns to a cold rain for most areas.

Advisories and watches:

A Winter Storm Warning into Tuesday morning for the northern Olympic Peninsula, around Port Angeles and Sequim.

Weather causes flight delays, icy conditions

Long delays were also reported at Sea-Tac, as de-icer was used on planes and airlines worked around backups. Use this link to check incoming and outgoing flights before heading to the airport. If you're getting to the airport on light rail, use this link for schedules.

On the roads, Seattle-area crews are preparing to use salt, sand and liquid anti-icer on roadways.

Salt is an effective ice melt, and, depending on conditions, workers mix in sand to help with traction.

On Monday afternoon, King County Road Maintenance Manager Jeremy Feguson said his crews were not able to do much in advance because the roadways were wet.

One of the best pre-treatments, liquid anti-icer, can wash away.

Chris Johnson, Maintenance and Operations Manager for the Washington State Department of Transportation, said roadways were dry enough Monday in the Kent valley and the Bellingham and Mount Vernon areas that crews were able to use some anti-icer.

"If they can get on it they're going to put the anti-icers down which gives us a leg up on tomorrow morning's commute," Johnson said.

Additional weather coverage on KIRO 7