A strong solar storm is expected to bring vivid auroras across northern regions of the United States. The sun recently released a powerful coronal mass ejection that is heading toward Earth, prompting a geomagnetic storm watch from space weather experts.
The burst of energy is anticipated to reach Earth between Thursday evening and Friday morning. The intensity and southern reach of the auroras will depend on when the solar particles arrive and how they interact with Earth's magnetic field.
"Auroras will quite likely spin up overnight," said Shawn Dahl, a space weather forecaster at the National Oceanic and Atmospheric Administration, in an email.
Authorities are closely observing solar activity but currently expect no major disruptions to communication or radio systems, according to Dahl.
The brightness of the moon, currently close to Earth, might hinder visibility. Northern lights could remain visible on Friday night, depending on the continuation of solar activity. The sun is now in the peak phase of its 11-year cycle, increasing the likelihood of frequent and widespread auroral displays.
Solar storms may cause northern lights to shine across the northern U.S. this weekend, with the best chance to view them away from city lights.