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by Chris Scragg
Puget Sound Weather Geek 
Check out the eight day forecast above and you’ll notice that the blue temperature bars drop super low starting on Tuesday. Low temperatures are expected to drop into the 20s on Wednesday! What’s going on?! Is it Winter already?!
We’re going to begin experiencing a very cold air mass migrating into the region (the same one affecting the entire eastern region of the U.S.) early this week. The cold air mass is connected to a strong high pressure (a big hill of air) that will push away any clouds or moisture. You can already look at my barometer on the live stream and see the pressure at 1021 millibars and still rising (the average sea level pressure is 1013mb)! This will result in bitterly cold but clear days and nights on Monday, Tuesday and Wednesday.
Any outdoor activities this week will require extra layers of clothing, so keep that in mind when going out.
Another interesting result of the this cold air intrusion will be a spike in winds in western Washington. As the high pressure (picture it at this point as a tsunami of cold heavy air rolling over the mountains) the air will funnel through all the nooks and crannies of the Cascade mountain range and bring some high winds to some areas.
Stay warm out there! I’m writing this from the safety of the warm and toasty Phoenix, Arizona.
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