Chicago, IL – A strong geomagnetic storm is underway and expected to last through Thursday morning, with the potential to affect power systems, GPS, and satellite operations across the United States.
According to the NOAA Space Weather Prediction Center (SWPC), G3 (Strong) geomagnetic storming is being driven by high-speed solar winds from a coronal hole. The storm is forecast to persist through Oct. 2 at 6:00 a.m. CDT, with fluctuating intensities throughout the night.
NOAA warns that auroras could be visible much farther south than normal, possibly reaching from New York to Iowa and Washington state, depending on storm strength. Illinois residents, especially in northern counties, may have a chance to see the northern lights if skies remain clear.
The agency notes potential risks to power grids, satellite communications, and navigation systems. High-frequency radio signals may also experience degradation at higher latitudes. Infrastructure operators have been alerted to prepare for any necessary mitigation steps.
This storm follows a series of strong solar events in recent weeks, part of an active period in the sun’s cycle. SWPC advises the public to monitor official updates as conditions can shift quickly.
For those in aurora-viewing regions, experts recommend checking the sky tonight between 10 p.m. and 2 a.m. local time, when geomagnetic activity often peaks.
