Dense fog hovered over Goodland, Kan., this morning. Fog can slow down post-holiday travel and morning commutes. Our 90-minute forecast can help!

Dense fog showed up on the WeatherRadar across the Plains and into the Midwest on Thursday morning. This video of dense fog in Goodland, Kan., shows just how much visibility can drop when fog is present.

Fog forms when the air near the ground becomes saturated with water vapor. It's basically a cloud forming at ground level instead of higher up in the sky.

Low visibility may impact post-holiday travel through the morning hours on Thursday and into the midday hours for some communities. Remember to slow down and turn your headlights on. Also, if you want to know when the fog will lift, our 90-minute forecast is just a quick touch away.