Freezing fog creates rare light pillars in Wisconsin on Sunday

Dense freezing fog may create icy spots on roads tonight into Sunday

What is a sun pillar, or light pillar? They're beautiful!

Door County gift shop covered with a foot of ice after winter storm

Freezing fog causes some slick spots and rare “light pillars” to appear, Archive

Freezing fog leaves wintry scene across much of northern Illinois and southern Wisconsin, MyStateline

8-Day Northern Lights Winter Self-Drive of the Complete Ring Road of Iceland & Golden Circle, 8-Day Winter Ring Road Self-Drive Tour

Rounds of freezing fog formed a frosty phenomenon called 'rime ice' in Northeast Wisconsin

Rounds of freezing fog formed a frosty phenomenon called 'rime ice' in Northeast Wisconsin

Vertical light beam seen in Wisconsin winter skies called sun pillar

Will there be a rainbow during snowfall? - Quora

Bioluminescence Experience: PNW

Noticing light pillars? Here's why you might see some in the winter, Features

Viewer Photos: Sun Dogs

What is freezing fog?