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As expected, temperatures have plummeted and overnight we’ll have prolonged freezing temperatures. In addition, wind chills will be in the teens for most overnight with some single-digit wind chills across the north. These temperatures and wind chills are — for most — the most severe cold of the winter so far.
Also, any moisture from melting snow today will refreeze tonight. The problem with icing and freezing fog will be a bit more limited the next few mornings but there will still be pockets that are slippery so drivers should take heed — especially on untreated, less well-traveled, and rural roads, bridges and overpasses.
It’ll be sunny tomorrow and Wednesday with highs in the 30s to low 40s.
More clouds appear later on Thursday and there is the possibility of some light snow late in the day into Thursday evening, mainly across the southern one-third of the area. Aside from flurries elsewhere, the impact from this weak disturbance should be minimal. Any snowfall will be battling very dry air at the surface, so accumulations of any note will be difficult to achieve. We could also continue to have light snow again or a rain/snow mix on Friday, again favoring southern locations.
On Saturday, the weather pattern changes to a more typical February pattern and temperature moderate significantly -- ending our prolonged cold blast. Milder air with Pacific moisture will likely move in during the morning and continue the remainder of the day. There could be a few hours-long transition period where we have some wet snow or rain/snow mix in the lowlands before temperatures rise and snow levels too, later in the day. This will mean a turn to all rain in the lowlands and the end of our snow chances for the time being.
In the Cascades, snow will increase, and pass travel could get difficult later on Saturday into Sunday.
Long-range indications point to more lowland rain and potentially heavy mountain snow from this weekend through early next week. We need more snowpack in the Cascades, so this is good news down the road.
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