A ripple in the atmosphere swept across the region this morning! WeatherRadar captured a striking gravity wave moving out of Kentucky and into Tennessee, revealing a phenomenon you might never have noticed from the ground.

An unusual atmospheric feature appeared on WeatherRadar this morning, as a gravity wave moved from Kentucky into Tennessee. The wave showed up as a distinct band on the WeatherRadar as it traveled across the region.

Gravity waves form when air is pushed vertically and then oscillates as gravity pulls it back toward its original level. They can develop around fronts, thunderstorms and other disturbances, sometimes creating noticeable changes in clouds, wind and precipitation. This morning's gravity wave was formed by a cluster of thunderstorms in northern Kentucky.

You can follow the wave’s movement on the WeatherRadar, which shows the past 24 hours, in the Weather & Radar app.