South Dakota Dense Fog Advisory | Effective 04/13/2026 10:37
Public safety alert, emergency alert, and weather alert<br />
Description:<br />
* WHAT...Visibility one quarter mile or less in dense fog.
* WHERE...Codington, Day, Deuel, Grant, and Marshall Counties.
* WHEN...Until 3 PM CDT this afternoon.
* IMPACTS...Low visibility could make driving conditions hazardous.
Instruction:<br />
If driving, slow down, use your headlights, and leave plenty of<br />
distance ahead of you.