November
A textbook Kelvin–Helmholtz instability by Lukas Gallo
An incredible Kelvin-Helmholtz waves in South Bohemia.
Monster storm in Uruguaiana by Douglas Cunha
The beautiful shelf cloud Uruguaiana, Rio Grande do Sul, Brazil
Purple sunset by Šimon Rogl
Breathtaking view of Stratucumulus clouds flooded with pink light during sunset.