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News / Clark County News

Weather Eye: Wet weather expected to return this week; does moon play role?

By Patrick Timm
Published: December 8, 2020, 6:04am

Looking skyward today it appears a tad bit damp, as showers were in the forecast. We may have a dry day Wednesday but then a period of wet weather finally arrives. This unsettled weather will continue through the weekend and beyond. There is a fetch of moisture streaming off Hawaii and some of this may be entrained in the weather pattern, if so, we could get some moderate rain and unfortunately, possible rain in the mountains, except the higher slopes.

We’ll see on that one. The moisture arriving Thursday has cooler air aloft so some light snow on the mountains most likely. About time the weather pattern changes. After all, through 4 p.m. Monday Vancouver only had .09 of an inch in the rain gauge for the month. That is 1.30 inches below average.

The only downside of the nice dry weather so far is we may have to endure a period of rains in order to catch up. But we are used to that here and as I say, “normal” is just an average of extremes. So, we tread lightly into the second week of December. No snow in the lowlands on the horizon but colder air will be building to the far north.

There is an old 19th century saying, “The moon and the weather may change together, but the change of the moon does not change our weather. If we’d had no moon at all and that may seem strange, we still should have weather that’s subject to change.”

This implies that the moon has no effect on our weather. However, now that we are well into the computer age, a study was done with 50 years of National Weather Service rainfall data and the phases of the moon. It was found that rain and snow are more apt to fall within three days of a full moon and that at the moon’s first and third quarters, dry weather is an above-average possibility.

Interesting, but after living here for many decades, no matter what, the weather will do what it wants. It does seem a full moon is often obscured by clouds, however. We’ll chat on Thursday.

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