People across the United States, from Alabama to New Mexico, witnessed stunning displays of the northern lights on Wednesday night as powerful bursts of charged particles from the Sun reached Earth, reports Baltimore Chronicle citing The New York Times. The colorful phenomenon illuminated the skies in shades of red, pink, and green, visible far beyond the usual northern latitudes.
The National Weather Service offices across multiple states — including New York, Oklahoma, Washington, Tennessee, Iowa, Idaho, and South Dakota — shared striking images on social media, showing ribbons of light stretching across the night sky. The auroras began appearing late Tuesday following a series of coronal mass ejections (C.M.E.), large solar eruptions that propel clouds of charged particles into space. When these reach Earth, they disturb its magnetic field, creating geomagnetic storms and producing the aurora borealis.
Meteorologist Marc Chenard of the Weather Prediction Center said the northern lights were expected to remain visible in northern regions of the U.S. through Wednesday night, though widespread cloud cover could obstruct views along the West Coast and in parts of the Northeast. Clearer skies were forecasted for areas such as Minnesota, Wisconsin, the Dakotas, and southern Michigan. Chenard noted that if the solar activity extended farther south, residents in the Mid-Atlantic and Tennessee Valley might also catch a glimpse, along with parts of Kansas, Missouri, Nebraska, and Colorado.
Auroras are typically visible closer to the Arctic Circle. The light patterns arise when solar particles interact with gases in Earth’s atmosphere, generating colors that vary depending on the gas type — green and red from oxygen, and blue and purple from nitrogen.
According to the National Oceanic and Atmospheric Administration’s (NOAA) Space Weather Prediction Center, three separate solar ejections have occurred in recent days. “Two of them have already reached Earth, and they were quite strong,” said Shawn Dahl, a service coordinator at the center in Boulder, Colorado. Dahl added in a Tuesday night update that the third ejection was the most powerful yet and was expected to arrive around midday Wednesday in the United States.
NOAA issued a G4 geomagnetic storm watch, which is the second-highest level on its five-tier scale, just below G5 — the most severe. Experts warned that while these storms create breathtaking celestial displays, they also pose risks to infrastructure. The Space Weather Prediction Center cautioned that strong geomagnetic activity could cause voltage fluctuations in power systems and disrupt satellite operations and GPS accuracy.
Space weather agencies in Canada and the United Kingdom also released alerts as similar auroras were expected over northern Britain. The U.K. Met Office’s Space Weather Operations Center stated that the lights might be visible again on Wednesday night, particularly over northern Scotland, though heavy cloud cover could limit visibility. There was also a possibility of sightings extending as far south as England and Wales, where clearer skies were forecasted in eastern regions.
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