oxane:

Sunset Lenticularity by David Cartier

The area between Kluane Lake and Haines Junction, Yukon, skirting the great cordillera of the Wrangell / St. Elias Mtn. range, is commonly productive of these stacked lenticular clouds … In late summer, as the sun begins to set around 11 PM, it’s beautiful to see these unique clouds, which are higher in altitude than their surrounding companions, catching the last peach colored rays of the sun.