Colder air moves in Monday morning

While overnight temperatures remain above freezing across the lowlands, any lingering showers could have some wet snow mixed in through the morning hours Monday.

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Accumulation isn’t expected through daybreak for most areas. During the daytime hours of Monday morning, a southward-moving “front” associated with the leading edge of colder air coming in from British Columbia will create some areas of rain and wet snow.

This activity will move from north to south through the midday hours and there could be brief, minor accumulations mainly on grassy surfaces.

The best chances of whitening up of the ground will be north of Seattle and especially along the Strait around Port Angeles and Sequim. A winter weather advisory is out for that part of Clallam County for 1-2 inches of snow.

Many other locations will experience snowflakes but have no accumulation. It’s a reminder that it’s still winter!

A wind advisory is out for Monday for Whatcom, Skagit, San Juan counties and the north coast for cold northeast winds of 40-50 mph. Temperatures in these areas will struggle to get out of the 30s on Monday with wind chills in the teens!

Elsewhere, highs will be in the upper 30s and lower 40s on Monday with blustery winds by the afternoon. The aforementioned areas of rain and wet snow will come to an end by early to mid-afternoon. Any accumulated snow should melt.

TUESDAY AND AHEAD:

The very cold air mass moving in will plunge temperatures into the 20s areawide by Tuesday morning. With clear skies and breezes continuing, we don’t expect any fog but any moisture on the roads will freeze, though any issues with ice Tuesday morning should be relatively isolated.

It’ll be sunny on Tuesday with highs only in the 30s. The coldest morning will be Wednesday morning with a record low of 23 degrees for the date in Seattle. Temperatures will still only be in the 30s on Wednesday but with sunny skies.

While we’ll start out Thursday in the 20s once again, temperatures will start to moderate on Thursday and Friday and the subfreezing temperatures will be in the rearview mirror. Highs will be in the 40s with mainly clear skies.

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