Video posted by X user NW Iowa Hawk fan shows a severe storm sweeping into Sergeant Bluff, featuring dark, spinning clouds and the potential for tornado formation.

The footage captures dramatic cloud movement and an ominous sky as the storm moves in from the south. No damage or aftermath is visible in the clip, but the intensity of the storm is clear.

Meteorologists link this storm to a broader pattern of extreme weather across the central Plains. Experts note that conditions were affected by the solar maximum of solar cycle 25, which reached its peak in July 2025.

Reports of fire whirls and tornadoes in nearby areas underline the storm’s severity, demonstrating the heightened instability in the atmosphere caused by increased solar activity.