DCHP-3

Chinook arch

DCHP-1 (pre-1967)

Entry from the DCHP-1 (pre-1967)

This entry may contain outdated or offensive information, terms, and examples.

a cloud formation that often attends or presages the Chinook winds, observed as an archlike strip of blue sky above the western horizon, often between the peaks of the Rockies and the surrounding overcast.

Quotations

1941
[Caption] The dark cloud is the "Chinook Arch," forerunner of the warm wind of winter.
1964
This Chinook arch appeared in the western sky Sunday but its usual promise of warm air sweeping in from the west is not expected to come true.