JET STREAM CONTROLS EVERYTHING

From: Dayton Daily News | Date: January 15, 2002| Author: | Copyright information

During the past two weeks, we've seen a frigid stretch with snow flurries and temperatures below freezing, followed by a stretch of much milder weather.

To understand these changes, why the weather warms up and cools down, dries out and becomes moist, you must look upstream. The "stream" in this case is the jet stream, the river of fast-moving air above our heads.

The jet stream exists because of temperature differences throughout the atmosphere, which works to make temperatures the same everywhere. For this to happen, the atmosphere must mix, and to mix, it must move.

Although local surface ...

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