Daily Archives: December 11, 2023

The cycle of daytime heating and night time cooling explains why, under most circumstances, calm winds are near the surface at night.

The wind usually increases with height above Earth’s surface. The wind several thousand feet above the ground is almost always stronger than that experienced near the ground. Friction causes the wind close to the ground to move more slowly. Friction decelerates the wind in the same way a rough road surface slows down a bicycle. Continue reading →