second Chinook
Quoting- "Chinook winds, often just called chinooks, are Föhn winds[1] in the interior West of North America, where the Canadian Prairies and Great Plains meet various mountain ranges. Chinook wind are so named because they come from the country of the Chinook Native Americans: the lower Columbia River, west of the Rocky Mountains. The term originated in the local argot of the fur trade, which spread it to the prairies. A popular myth is that Chinook means "snow eater", as a strong Chinook can make snow one foot deep almost vanish in one day. The snow partly melts and partly evaporates in the dry wind. Chinook winds have been observed to raise winter temperature, often from below −20°C (−4°F) to as high as 10°C to 20°C (50°F to 68°F) for a few hours or days, then temperatures plummet to their base levels. The greatest recorded temperature change in 24 hours was caused by Chinook winds on January 15, 1972, in Loma, Montana; the temperature rose from -48°C (-56°F) to 9°C (49°F)." Also see the Charles Russell painting "Waiting for a Chinook (Last of the 5000)" In the winter of 1886 Charlie Russell was employed by Kaufman and Stadler in Montana. Kaufman wrote asking how the herd of 5000 cattle had fared. The response by Russell was a sketch of a starving cow in the snow. http://www.moneymaker.com/gallery/russell/chnookb.gif
