You can't see it's there, but the effects can be devastating.
Black ice - There were some problems for drivers in western Douglas County earlier this afternoon.
Drivers we talked with said they encounterd a thin band of black ice on Highway 92 between Yutan and west Omaha just after noon.
One driver says it was so bad that ice collected on the windshield of his truck making visibility difficult.
Just when he was about to pull over...it stopped.
We also saw several salt and sand trucks on rural roads west of the Metro area earlier today.