SPOKANE, Wash.- It’s a beautiful phenomenon that’s gracing skies near the West Coast.
They’re called fallstreaks or punch hole clouds, and they were spotted Monday morning over southern British Columbia.
A fallstreak hole is a circular gap seen in cirrocumulus and altocumulus clouds. They form when a plane passing through a cloud layer, where water droplets have yet to freeze. As the water drops freeze, they fall and leave a hole behind.
This National Weather Service radar loop shows the well-defined fallstreak cloud over Kelowna, British Columbia:
The rare clouds were seen found on Feb. 18 in eastern Washington and Northern Idaho.