Chinook Arch
One of its most striking features is the Chinook arch, which is a band of stationary stratus clouds caused by air rippling over the mountains due to orographic lifting. To those unfamiliar with it, the Chinook arch may look like a threatening storm cloud at times. However, they rarely produce rain or snow. They can also create stunning sunrises and sunsets.
The stunning colours seen in the Chinook arch are quite common. Typically, the colours will change throughout the day, starting with yellow, orange, red and pink shades in the morning as the sun comes up, grey shades at midday changing to pink/red colours, and then orange/yellow hues just before the sun sets.
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Chinook arch over Calgary, January 6, 2003
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The extreme colours of a Chinook arch
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Chinook arch over Calgary, March 2007
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Chinook arch over Kelowna, BC Canada, October 2, 2007
Read more about this topic: Chinook Wind
Famous quotes containing the words chinook and/or arch:
“The first man to discover Chinook salmon in the Columbia, caught 264 in a day and carried them across the river by walking on the backs of other fish. His greatest feat, however, was learning the Chinook jargon in 15 minutes from listening to salmon talk.”
—State of Oregon, U.S. public relief program (1935-1943)
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—Maya Angelou (b. 1928)