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 ...

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.

AUSTIN (KXAN) — Meteorologists study the upper levels of the atmosphere to better understand troughs and ridges, which helps them predict both day-to-day weather conditions and long-range patterns.

Many in Maine will have a white Christmas thanks to a winter storm that brought several inches of snow to many and more than a foot of snow to some. The National Weather Service reported the morning ...

We're going back to the trough for a drink of cool, wet summer weather. Now into mid-July without a day above 90 degrees (we've had three days right at 90, officially at the Roanoke Regional Airport), ...