Lenticular (lens-shaped) clouds don’t just form over mountains. Any forced, tightly focused lift of sufficiently moist air will work, regardless of the cause. Here, lenticulars developed above an arcus (shelf) cloud from a cluster of thunderstorms moving north to south, toward the viewer. Morning arcus formations can be some of the most spectacular and peculiar, thanks to the time of day. Hoisting of an optimally stabilized, nocturnally cooled boundary layer, by a progressive and even more-stable outflow pool, yields such wild striated effects.
Norman, OK (25 May 18) Looking N
35.1821, -97.4408Arcus Lenticulars
Lenticular (lens-shaped) clouds don’t just form over mountains. Any forced, tightly focused lift of sufficiently moist air will work, regardless of the cause. Here, lenticulars developed above an arcus (shelf) cloud from a cluster of thunderstorms moving north to south, toward the viewer. Morning arcus formations can be some of the most spectacular and peculiar, thanks to the time of day. Hoisting of an optimally stabilized, nocturnally cooled boundary layer, by a progressive and even more-stable outflow pool, yields such wild striated effects.
Norman, OK (25 May 18) Looking N
35.1821, -97.4408