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One of its most striking features of the interior Chinook weather system is the Chinook arch, a föhn cloud in the form of 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 at times look like a threatening storm cloud, however, the arch ...
A chinook arch cloud is an extensive wave cloud. It has this special name in North America where it is associated with the Chinook wind. It forms above the mountain range, usually at the beginning of a chinook wind as a result of orographic lifting over the range. It appears when seen from downwind to form an arch over the mountain range.
The extreme contrast of a Chinook arch. Whereas this fourth photo is a chinook arch, it doesn't demonstrate the "arch" component well enough. I'd drop this photo. --Dogbreathcanada 09:57, 28 February 2006 (UTC) The cloud in this photo appears to be arching up, not down as a Chinook arch should. Elpoca 15:49, 1 March 2006 (UTC)
The storm’s exact track, impacts and timing will come into focus by the end of the week, but anyone from the central Plains to the mid-Atlantic should prepare for winter weather. CNN ...
A winter storm emerging from the Rockies is forecast to bring rain, snow and ice to a large part of the U.S., the National Weather Service said Friday, bringing below freezing temperatures with it ...
Get the Chinook, WA local weather forecast by the hour and the next 10 days.
This weather pattern is frequently visible in summer across Canterbury and North Otago. The 'Nor'wester' is a foehn wind similar to the Chinook of Canada, where mountain ranges in the path of prevailing moisture laden winds force air upwards, thus cooling the air and condensing the moisture to rain, producing hot dry winds in the descending air ...
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