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March 28, 2024

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Weather Eye: Temperatures likely to fall, and so is some precipitation

The Columbian
Published: May 18, 2010, 12:00am

Ah, don’t let the weather on Monday fool you. Yes, we got an unexpected break in the clouds with only light showers early in the morning and plenty of afternoon sunshine bringing our string of 70 degree plus to five days. Gotta love that!

However, things will cool down dramatically on Wednesday, with sticking snow still being forecast for the mountain passes this week.

For the first 16 days of this month, Vancouver was running below normal both in the average mean temperature and in the rainfall department. Over the next several days, the rain amounts will go up and the temperatures will go down, although there should be some breaks between the bands of moisture that move through.

I wouldn’t rule out a thunderstorm, either.

This Thursday, the Oregon Chapter of the American Meteorology Society will hold its monthly meeting at Portland State University. Professor Christina Hulbe, geology department at PSU, will give a presentation on “Ice Sheets and Sea Level Rise.” It starts at 7 p.m. and everyone is invited. There is free parking in the PSU garage at Southwest Broadway and Southwest Harrison. The event will be at Cramer Hall, Room S-17 (in the basement).

Today is the 30th anniversary of the eruption of Mount St. Helens. I remember it well: It was Sunday morning, and while getting ready for church, I was enjoying the sunny skies out in my backyard. I remember hearing some kind of boom and moments later I looked to the northeast to see a towering dark plume. I knew it was the mountain as it had been putting out numerous earthquakes for a couple of months.

The weather pattern was giving us northwest winds, which ushered the clouds and ash into Central and Eastern Washington. It remained clear all day, with warm temperatures, making it ideal for watching this awesome event. Subsequent ash eruptions, accompanied by rainy days, covered Clark County with a gray mud.

Pat Timm is a local weather specialist. His column appears Tuesdays, Thursdays and Sundays. Reach him at weathersystems.com.

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