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Dense Fog Advisory Issued for Clark and Hamlin Counties

A Dense Fog Advisory has been issued for Clark and Hamlin Counties until 1:00 PM CDT today, with visibility at one-quarter mile or less, making driving hazardous. Motorists should slow down, use headlights, and leave extra distance between vehicles.

Staff Writer
10/12/2026 · Clark & Codington Region edition

Residents in Clark and Hamlin Counties are advised to slow down, use headlights, and increase following distance due to a Dense Fog Advisory now in effect. The National Weather Service (NWS) in Aberdeen, SD, issued the advisory on October 12 at 4:11 AM CDT, remaining in effect until 1:00 PM CDT today.

Visibility is reported at one-quarter mile or less, making driving conditions hazardous. The NWS emphasizes the importance of caution for anyone traveling within the affected areas.

For your safety, if you must drive during this period, ensure your headlights are on and maintain a safe distance from other vehicles. Reduced visibility significantly increases the risk of accidents.

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