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Beautiful Weather for Thanksgiving

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WEATHER DISCUSSION

The quiet weather will remain in place through the next several days. Because the same air mass has been in place for so long, and strong inversions are forming in the overnight hours, our air is not mixing very well. For this reason, our air qualities are being impacted and the National Weather Service has placed most of the Southern Oregon under an Air Stagnation Advisory through Saturday at noon.

By Sunday, big changes are headed our way. An arctic air mass is going to quickly drop snow levels into Monday. At this point, after watching the weather models consistently the past several days a rough estimation of snow levels on Sunday would be about 6,000.’ This is great news for the holiday weekend and travelers heading back into Southern Oregon. However, snow levels further north will be lower, with the cold air sinking in sooner since this weather system is moving in from the Gulf of Alaska. Those traveling back to Southern Oregon from Seattle or north of Portland should be prepared for winter weather.

Although snow levels will be fairly high for Sunday, wet weather is still in the forecast and widespread showers are anticipated by the afternoon, continuing through the overnight hours. By Monday, passes at and above 4,000’ will be seeing winter weather. Both rain and snow showers will remain fairly widespread through much of the day before beginning to wind down Monday evening.

Tuesday morning, the arctic air will really have settled in …with snow levels expected to be down to the Valley floor. Showers will still linger into Tuesday and this would mean snow showers for the Rogue Valley. Drier air will move in by Wednesday, but even cooler temperatures. The cold air mass will stay in place through much of next week, with many locations in the Valley struggling to warm into the mid 30’s, and highs in the 20’s for the Klamath Basin.

 

Happy holidays & safe travels!

 

Meteorologist Alyssa Caroprese

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