|Radiation fog forms due to surface cooling at night in a light wind. Advection fog forms when warm humid air flows over a cold surface.
|Radiation fog is formed by surface cooling in a calm wind. Advection fog is formed by evaporation over the sea.
|Radiation fog forms due to night cooling and advection fog due to daytime cooling.
|Radiation fog forms only on the ground, advection fog only on the sea.