A powerful storm made for a bumpy ride as National Police Air Service (NPAS) pilots flew over London on Sunday, November 24. With active weather expected state-side during the holiday week, here's what to know about turbulent travel and how Weather & Radar can help you prepare.

While most flights are smooth, bumpy flights like the one in the video above occasionally occur. With millions heading to the airport this week for Thanksgiving travel, Weather & Radar is here to help you prepare for potential turbulence.

If you run into bumpy air, the weather is often to blame. Pop-up thunderstorms, cold fronts and large weather systems, such as mid-latitude cyclones, can cause turbulence. Other causes of turbulence include flying near jet streams and mountain waves. When wind flows over mountains, it creates waves in the atmosphere. These waves can extend far from the mountains, creating turbulence, even in clear skies.

Since the weather is often the cause of bumpy plane rides, the WeatherRadar can help you keep an eye on what you may run into on your flight path. Weather & Radar's expert meteorologists will also have live forecasts this week to help you plan your travel. And if you're concerned about a turbulent landing, you can check the WindRadar to see how gusty it will be when you land.