614 AM CST Thu Dec 17 2020
...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CST THIS MORNING...
* WHAT...Visibility less than one quarter mile in dense fog.
* WHERE...Portions of east central and southeast South Dakota,
northwest Iowa and southwest Minnesota.
* WHEN...Until 9 AM CST this morning.
* IMPACTS...Hazardous driving conditions due to low visibility.
* ADDITIONAL DETAILS...The fog may deposit on sidewalks and roads
and could create some isolated slick spots.
If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.