Sioux Falls, South Dakota – Outdoor plans could face a sudden shift near and east of I-29 this afternoon as isolated showers and weak thunderstorms develop, potentially giving rise to short-lived funnel clouds or landspouts.
According to the National Weather Service in Sioux Falls, while severe weather isn’t expected, conditions between 1 and 6 p.m. may support the formation of weak funnel clouds. These features typically remain aloft and rarely touch down, but they can still pose a risk—especially if one forms nearby.
Areas from Sioux Falls north to Brookings and east toward Storm Lake could experience brief downpours, lightning, or isolated thunder. Radar may not detect these funnels easily due to their small size, so residents and visitors are urged to stay alert while outside. Take cover immediately if a funnel cloud approaches.
Drivers along I-29 should also remain cautious during afternoon travel, as sudden weather changes and lightning could impact visibility and road safety.
This pattern of unstable air is expected to dissipate by early evening. More updates will follow if conditions escalate.
