Thursday, December 29, 2011
Now it's raining - hard and the wind is howling.
It's a chinook. To partially quote Wikipedia chinooks occur in the interior West of North America, where the Canadian Prairie's and the Great Plains meet various mountain ranges. The original usage is in reference to wet, warm coastal winds in the Pacific Northwest.
Chinook is claimed by popular mythology to mean "eater"but it is really the name of the people in the region where the usage was first derived. In this case it refers to a strong Chinook which can make snow one foot deep almost vanish in one day. The snow partly melts and partly evaporates in the dry wind. The winds have been known to raise the temperature from 20 degrees below to as high as 68 degrees above for a few hours or days, then temperatures plummet to their base levels. The greatest recorded temperature change in 4 hours was caused by Chinook winds on January 15, 1972 in Loma, Montana where the temperature rose from 48 degrees below to 48 degrees above.
I remember these from my childhood. Very interesting...........and slick!!! Diane