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Weather Eye: Weather poised to go from tranquil to very rainy this week

By Patrick Timm
Published: January 12, 2015, 4:00pm

Another inversion is in the making, which will keep the weather somewhat tranquil today and Wednesday. That means fog, low clouds and highs in the 40s at lower elevations, while upper elevations should see more sunshine and warmer temperatures.

Late Wednesday, things change as a parade of weather systems is forecast to move our way with more rain in tow. This pattern taps tropical moisture, so we might get some heavy rain and freezing levels may rise. We’ll see just where any heavy rain sets up. Remember, last go-around was north of Clark County, with flooding and landslides in much of Western Washington.

If we receive some moderate to heavy rainfall late in the week, it would help us catch up in the rain department. The month-to-date rainfall at Vancouver’s Pearson Field is only 0.45 of an inch, about 2 inches below average.

Late in the week, when the moisture arrives, only the higher elevations — say, above 6,000 feet — will get snow. It appears the snow level may drop down to pass levels by the end of the weekend. After that, we remain on the cool side of the jet stream. There will not be a whole lot of moisture and we might get some frost if skies clear out at night. I’m thinking the last week of the month will settle down and be relatively dry and cool.

I am compiling December rainfall amounts from around the area and will share them in a few days, so stay tuned.

If you want an episode of snow here in the lower elevations, I have no good news in the short term. Some forecast models want to pull cold arctic air our way but alas, just a tease. We still have February to get through, however. Do you remember last February? We had quite a snowstorm where the snow remained on the ground for several days. The snow was heavier the farther north you went out of Vancouver.

Not in the cards yet, but who knows? Enjoy your week and we will chat on Thursday when the rains return.


Patrick Timm is a local weather specialist. His column appears Tuesdays, Thursdays and Sundays. patricktimm.com

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