A polar vortex is a low pressure area—a wide expanse of swirling cold air—that is parked in polar regions. During winter, the polar vortex at the North Pole expands, sending cold air southward. This happens fairly regularly and is often associated with outbreaks of cold temperatures in the United States. https://scijinks.gov/polar-vortex/
Power is slowly being restored.
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Last Updated 2/18/2021, 04:46:33 PM
Iowa, has had record lows, but have not had any power outages. https://www.desmoinesregister.com/story/weather/2021/02/16/iowa-weather-des-moines-record-cold-parts-state-temperatures-more-30-below-zero-tuesday/6761587002/