Freezing Fog in South Dakota
Every freezing fog event the National Weather Service has filed in South Dakota, year by year, with the most significant episodes. Fog that froze on contact with roads, vehicles or structures.
The most significant on the map
The most significant freezing fog episodes in South Dakota.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The record
- Events
- 7
- Deaths
- 0
- Injuries
- 3
- Damage
- None recorded
Every year
The most significant
Ranked by deaths, injuries, damage and size together.
- Freezing Fog in South Dakota, January 17, 2008Patchy dense fog contributed to two accidents involving shool busses in the Lennox area. The fog was local with visibilities remaining high through the same time period a few miles away at the Sioux Falls airport.
- Freezing Fog in South Dakota, February 1 to 3, 2021Several periods of dense freezing fog from late January into early February brought heavy riming/ice buildup on power lines across much of north central South Dakota.
- Freezing Fog in South Dakota, December 19, 2023South Dakota Highway Patrol issued an alert to drivers that there were multiple vehicle accidents along a stretch of Interstate 29, the result of a mix of low visibility and icy road surfaces due to the overnight fog.
More
Sources
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24.