This book does focus on weather in the American West. But it is a great book about weather in general.
Keen became fascinated by weather in October 1954, when "a wild lady named Hazel" visited his home. I became fascinated by weather less than two months before that, when Hazel's, um, sister, Carol, visited my home. Hazel and Carol were two truly impressive storms.
Keen teaches us a little about what causes weather. He discusses cyclones, and mentions some of the major cyclones that have hit the West. We learn about all the different types of snow and snow crystals. And Keen tells us about thuderstorms, tornadoes, hurricanes, and more. There are all sorts of statistics on rainfall and on temperature extremes. And the author teaches us how to read weather maps!
One of the most interesting sections was on chinooks. The author explains that the Ute Indians knew that when one is within 10 or 20 miles to the East of a mountain range, you'll get occasional downslope winds which can exceed 100 miles per hour. That's why they refused to set their tepees at certain places just east of the Rockies. The white men ignored the Ute warnings and built a town (now a city) called Boulder, Colorado at one of these sites. And sure enough, every few years, Boulder gets hit by big chinook winds. So do Livingston, Montana, and Sheridan, Wyoming, and Bishop, California, and Carson City, Nevada. These winds are generally very warm, and can lift the temperatures by 20 to 80 degrees Fahrenheit in a few hours. The Chinook Indians of coastal Oregon called warm winds "snow-eaters," and that's how the snow-eating winds downslope of the mountains wound up being called "chinooks!"
I enjoyed this book very much. I certainly recommend it.
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