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News / Clark County News

Weather Eye: Pattern of rainstorms every other day continues

By Patrick Timm
Published: January 5, 2021, 6:00am

Getting tired of the rain yet? After a brief break today, more is heading our way this evening. The huge low spinning around in the Gulf of Alaska shows no signs of leaving. That translates to a rainstorm about every other day. So, rain tonight and Wednesday, a brief break Thursday, then rain Thursday night and Friday. Another break Saturday, then more rain Saturday night and Sunday. Pretty predictable.

In the first four days of the new year ending at 5 p.m. Monday, Vancouver has measured over 2 inches of rain. Some observers in our foothills have had 5 inches or more. Coastal rivers have been running at bank full and some are spilling over their banks, such as the Grays River, Naselle River and Willapa River in Southwest Washington.

With this type of pattern, we don’t get much of a chance for skies to clear, especially at night, so the overnight lows have been running in the mild 40s. Daytime highs are way above average in the 50s. I don’t see any change in this wet and mild pattern through the weekend.

Any chance of cold weather and lowland snow? Unusual for a La Nina winter but still no signs of a cold wave. Longer range forecast models keep hinting of colder temperature some two weeks out but as the days go by that disappears and goes farther out.

Nature is indeed making up for some dry months. Vancouver receives about 40 inches of rain annually and that increases about an inch for every mile you travel north and east of Mill Plain Boulevard. Salmon Creek averages about 47 inches, while Battle Ground locations get 50 inches or better. A wet location close to home is Cougar, where the average annual rainfall is 132 inches.

The wettest location in our state? The National Oceanic and Atmospheric Administration reported one measurement site in the Olympic Mountains received 255.41 inches in 2020. And last year was a dry one for most of the state.

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