Sioux Falls, S.D. – Parts of eastern South Dakota and northwest Iowa may see short-lived funnel clouds this afternoon as unstable air interacts with storm boundaries.
According to the National Weather Service in Sioux Falls, the best chances for funnel cloud formation will stretch from the James Valley eastward toward I-29 and into northwest Iowa through mid to late afternoon. These funnels typically form under developing showers and thunderstorms but usually dissipate once steady rainfall begins.
While these weak circulations rarely reach the ground or cause damage, they can resemble tornadoes and may rotate quickly. The NWS advises residents to watch for fast-spinning, low-hanging clouds—especially in areas seeing isolated storms. Drivers and outdoor workers are urged to stay weather-aware and report any funnel sightings to local emergency officials.
Cities including Brookings, Sioux Falls, and Sheldon, Iowa, could be impacted by these conditions. No official tornado warnings are in place, but local law enforcement and spotters are on alert.
The threat should diminish by early evening as rain coverage increases. Additional updates may follow if storms intensify.
