METEOROLOGIST MELISSA FREY’S FORECAST DISCUSSION:
This weekend brought in the coldest weather of the year so far. We dropped to 19° Saturday morning. To find a day colder than 19° you have to go back to December 2009, over 1,000 days ago! Sunday morning we only dropped to 28°, but then climbed just 1° the entire day, and it was right back down to 28° Monday morning.
2013 so far has been cold and dry! We’ve dropped below freezing 8 out of the 14 days so far this month and we haven’t even picked up a third of an inch or rain! Generally January brings in almost 7 inches of rain, but with no rain in the forecast for the next 7-day stretch, that’s not likely this year. Although, anything can happen, we only had a quarter of an inch at this point last year, and still managed to finish out the month with over eight inches!
A large ridge of high pressure is moving 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 will help set up a temperature inversion over the next couple of days, which means the air will likely be colder at the surface, than in the higher elevations. This causes our air to become rather stagnant though with the lack of wind or mixing in the atmosphere and it can become rather polluted.
Although our skies will be clear overhead, the valley will have to put up with fog for at least the next couple of nights. This will keep our temperatures in the 30s during the day while the coast is in the upper 40s and low 50s.
Overnight lows will fall to the upper 20s most nights this week and for the next couple of days highs will stay in the 30s. By Thursday we should start to see less fog and more off shore flow, which will bring our temps up into the upper 40s Thursday through Sunday.
Enjoy this dry weather while it lasts!
Have a great Monday!
-Meteorologist Melissa Frey
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