South Dakota Dense Fog Advisory | Effective 04/13/2026 10:37

Headline: 
Dense Fog Advisory issued April 13 at 12:37PM CDT until April 13 at 3:00PM CDT by NWS Aberdeen SD
Event: 
Dense Fog Advisory
Urgency: 
Expected
Effective: 
April 13, 2026 - 10:37am
Expires: 
April 13, 2026 - 1:00pm
Description: 
* 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: 
If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Area Description: 
Marshall; Day; Codington; Grant; Deuel
Forcast Office: 
NWS Aberdeen SD
Sender: 
w-nws.webmaster@noaa.gov