Rime ice, created from freezing fog, forms on the branches of a bush on Sunday, Jan. 8, 2023, in Iowa. (photo/Cindy Hadish)

Freezing fog painted a pretty picture in Iowa this morning, but also created icy roads that, tragically, likely contributed to a deadly pileup on Interstate 80 near Iowa City.

Fog is forecast again for Monday, Jan. 9, 2023, in Iowa, so take care on the roads.

Meteorologists refer to the coating of white on leaves and branches that forms from freezing fog as “rime ice,” while hoarfrost is frozen dew.

Hoarfrost forms with no fog and is lighter and softer.

Read more to learn the difference between the two frosty phenomena.

Rime ice forms on a leaf Jan. 8, 2023, in Cedar Rapids, Iowa. (photo/Cindy Hadish)