We hear about troughs and ridges all the time in our daily forecasts. These features high in the atmosphere are responsible for the vast majority of the weather we experience down here on the ground.

When you look at the atmosphere over a long period of time, it appears to move like a fluid. And just like a fluid, the atmosphere often moves in waves. In meteorology, we call the low points in ...

Last week we talked about troughs, and how they often produce cooler and unsettled weather. Now, we’re talking about the opposite of a trough: a ridge. A ridge is an elongated area of relatively high ...