![A winter tree with its branches fanning outward stands with heavy clouds behind it. There is grass in the foreground and hedges beyond Stock Photo - Alamy A winter tree with its branches fanning outward stands with heavy clouds behind it. There is grass in the foreground and hedges beyond Stock Photo - Alamy](https://c8.alamy.com/comp/2ATY8TG/a-winter-tree-with-its-branches-fanning-outward-stands-with-heavy-clouds-behind-it-there-is-grass-in-the-foreground-and-hedges-beyond-2ATY8TG.jpg)
A winter tree with its branches fanning outward stands with heavy clouds behind it. There is grass in the foreground and hedges beyond Stock Photo - Alamy
NCAR Science on Twitter: "#FBF In 1999, Carlye Calvin took this spectacular photo of a unique cloud formation fanning out over Boulder… but what is it? Tell us your guess in the
![A winter tree with its branches fanning outward stands with heavy clouds behind it. There is grass in the foreground and hedges beyond Stock Photo - Alamy A winter tree with its branches fanning outward stands with heavy clouds behind it. There is grass in the foreground and hedges beyond Stock Photo - Alamy](https://c8.alamy.com/comp/2ATY8PM/a-winter-tree-with-its-branches-fanning-outward-stands-with-heavy-clouds-behind-it-there-is-grass-in-the-foreground-and-hedges-beyond-2ATY8PM.jpg)
A winter tree with its branches fanning outward stands with heavy clouds behind it. There is grass in the foreground and hedges beyond Stock Photo - Alamy
![Fanning Atoll, Kiribati, lagoon, beach, paradise, Pacific Ocean, shoreline, island, HD wallpaper | Peakpx Fanning Atoll, Kiribati, lagoon, beach, paradise, Pacific Ocean, shoreline, island, HD wallpaper | Peakpx](https://w0.peakpx.com/wallpaper/413/125/HD-wallpaper-fanning-atoll-kiribati-lagoon-beach-paradise-pacific-ocean-shoreline-island-clouds-palms.jpg)
Fanning Atoll, Kiribati, lagoon, beach, paradise, Pacific Ocean, shoreline, island, HD wallpaper | Peakpx
![Cumulous Clouds Glowing At The Edges With Sun Rays Fanning Out From Behind The Clouds. Stock Photo, Picture And Royalty Free Image. Image 5169093. Cumulous Clouds Glowing At The Edges With Sun Rays Fanning Out From Behind The Clouds. Stock Photo, Picture And Royalty Free Image. Image 5169093.](https://previews.123rf.com/images/sorsillo/sorsillo0907/sorsillo090700043/5169093-cumulous-clouds-glowing-at-the-edges-with-sun-rays-fanning-out-from-behind-the-clouds-.jpg)