What Makes Wind?

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By By Steve Pool

SEATTLE - Normally, we're supposed to be getting our usual bouts with windy weather this time of year. Even though it's been rather calm thus far, you just know windier weather is around the corner.

Wind is created from differences between higher pressure and lower pressure. Air always tries to flow from higher pressure, toward lower pressure until the pressures are equalized.

The greater the difference in pressure between two points, the faster the wind speed will be. Other things such as mountains and valleys can affect the wind as well. The Puget Sound area can get strong windstorms in part because the Olympics and Cascades work to channel the winds along the I-5 corridor. As the area over which the winds move decreases, the wind speed will increase.

Your Photos

YouNews House destroyed by tree House destroyed by tree
Cottonwood tree felled by today's windstorm destroyed home in Lynnwood. Occupants - fearing the intensity of storm - retreated safely to their basement just minutes before the tree fell. House is a total loss.
YouNews Wild winds turns into 3 totaled cars Wild winds turns into 3 totaled cars
A huge tree, in Lynwood, snapped in half causing branches to brake windshields open, damged equipment, and frontal damge of a car. Started out as simply winds, leading into wilder then moments before causing a rather large tree to fall over and hit three cars.
YouNews Changes on the way Changes on the way
The cloud bands around Mt. Rainier are a sure sign of changing weather conditions. These images of Mt. Rainier were taken Thursday evening around 7:30pm with a Nikon D3000
and a 200mm telephoto lens. The dark spots on the 1st image is flock of birds (not dirt on the lens).