Northern Lights Forecasted to Illuminate U.S. Skies on March 20

A coronal mass ejection coinciding with the vernal equinox is expected to create visible auroras, with optimal viewing conditions in northern states and minimal light pollution.

• The aurora borealis is predicted to be visible on March 20, 2025, due to a coronal mass ejection aligning with the vernal equinox, enhancing auroral activity.
• NOAA forecasts a Kp index of three to four, suggesting visibility in northern U.S. states, including Michigan, Maine, and Alaska, with potential expansion to more southern regions.
• Viewing conditions are best between 10 p.m. and 2 a.m. local time in areas with dark skies and minimal light pollution, according to NOAA guidance.
• The vernal equinox increases auroral activity by aligning Earth's magnetic field with the solar wind, amplifying the effects of the coronal mass ejection.
• This event follows heightened auroral activity during the sun's solar maximum phase, which has driven record-breaking displays since 2024.

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