⚠️ Dense Fog Advisory – Sioux; O’Brien; Plymouth; Cherokee – Tuesday, September 8, 2026

Dense Fog Advisory issued September 8 at 11:39PM CDT until September 9 at 9:00AM CDT by NWS Sioux Falls SD

Details

* WHAT…Visibility below one half a mile in dense fog.

* WHERE…Cherokee, O’Brien, Plymouth, and Sioux Counties.

* WHEN…Until 9 AM CDT Wednesday.

* IMPACTS…Low visibility could make driving conditions hazardous.

Instructions

If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.

This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.