chinook arch

chinook arch

[shə′nu̇k ′ärch]
(meteorology)
A foehn cloud formation appearing as a bank of clouds over the Rocky Mountains, generally a flat layer of altostratus, heralding the approach of a chinook.
References in periodicals archive ?
The grassroots initiative to establish a full-service public library prompted the Kainai Literacy Committee, along with the Kainai Board of Education and the Tribal Council, to approach Chinook Arch Library System.
One of the things that a number of people are trying to do is to get the federal government to provide funding specifically for public libraries," said Maggie Macdonald, CEO, Chinook Arch Regional Library System.
The organizing committee can promise a program of speakers and debates that will stimulate and freshen the mind -- probably clean the plaque from your teeth -- and one that will send you home able to tell the folks that prairie oysters aren't fish; a Calgary red-eye isn't a midnight flight to New York; and a chinook arch isn't found on any building.