Sioux Falls, SD – Drivers across eastern South Dakota are facing hazardous travel conditions this morning as dense fog reduces visibility to as low as one-quarter mile in some areas.
According to the National Weather Service in Sioux Falls, patchy dense fog is impacting parts of southeast South Dakota east of U.S. Highway 81, along with nearby areas of southwest Minnesota, northwest Iowa, and northeast Nebraska. The fog is expected to persist through about noon today, creating difficult driving conditions during the morning commute.
Forecasters say motorists should reduce speed, keep headlights on, and avoid using cruise control while traveling in fog-prone areas. Visibility may change rapidly, especially on rural highways and low-lying roads.
The National Weather Service noted that conditions may temporarily improve this afternoon, but additional fog could redevelop later today or this evening as moisture remains trapped near the surface. Officials are also monitoring for drizzle or freezing drizzle, which could further complicate travel if temperatures hover near freezing.
Drivers are encouraged to remain alert and allow extra travel time, particularly in areas outside metro centers where fog can be thicker and more persistent. Residents who observe drizzle or freezing drizzle are asked to report conditions directly to the National Weather Service, but only when it is safe to do so.
The affected region includes Sioux Falls and surrounding communities in Minnehaha and Lincoln counties, with impacts extending toward the greater Sioux City metro area and parts of southern Minnesota.
This article was produced by a journalist and may include AI-assisted input. All content is reviewed for accuracy and fairness.
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