Sunny & Warm Except in Valley

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Déjà vu, rinse and repeat, carbon copy…whatever you call it, today is going to look very similar to yesterday: dry and sunny across the state with dense fog in the valley.

If you’re one of those stuck under the fog today, just head up to about 1,000 feet, or at to the coast and you’ll quickly find sunny skies. You can see the fog layer on the visible satellite picture below:

A large ridge of high pressure has moved east over the Pacific Northwest and is the reason we’re going to stay dry. This ridge does several things to keep us dry and clear…First is blocks any other storms from moving in as the jet stream is clear up in northern Canada. It has also set up a temperature inversion, which means the air is colder at the surface, than in the higher elevations. This warm air overhead acts like a cap on the atmosphere, keeping things from mixing much.

Although they sky will be clear overhead, the valley will have to put up with fog for at least the next couple of nights. Overnight lows will fall to the upper 20s and low 30s through the weekend. We should start to see less fog and more off shore flow, which will bring our temps up from the upper 30s to the upper 40s Friday throughTuesday.

While the valley battles it out with the fog, the Coast and the Cascades are crystal clear and warm! Highs there will be in the mid 50s. There is still no rain in sight for any of us.

Enjoy this dry, sunny weather while it lasts!

Have a great Monday!
-Meteorologist Melissa Frey

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