The National Weather Service issued a freezing fog advisory at 7:47 a.m. on Friday valid between 8 a.m. and noon for Grande Ronde Valley.

That’s black ice. As The Weather Channel explains, the same thing can happen if the temperature drops below freezing after a rain shower has left surfaces wet or after dew or fog condenses to ...

Black ice gets its name due to a thin layer of ... make roads hazardous Saturday morning is the potential for freezing fog. Freezing fog is similar to regular fog reducing visibility, but instead ...