Summary (tl;dr)

A moderate (G2) geomagnetic storm is expected to significantly enhance the visibility of the aurora borealis, also known as the Northern Lights, across northern parts of the U.S., Canada, and other high-latitude regions this weekend and into Monday.

Essential Background

The aurora borealis is a natural light display in the Earth's sky, predominantly seen in high-latitude regions. It occurs when energetic charged particles from the sun, carried by solar wind, collide with atoms in Earth's upper atmosphere, causing them to emit light. These celestial displays become more frequent and intense during periods of increased solar activity, such as when coronal holes on the sun emit high-speed streams of solar wind. March is often considered a prime month for aurora viewing due to the "equinox effect," a phenomenon where Earth's magnetic field aligns optimally with the solar wind around the spring equinox, making auroras twice as likely.

The Full Story

"Aurora borealis forecast" is trending as the National Oceanic and Atmospheric Administration (NOAA) has issued a forecast for active space weather, predicting a G2-class geomagnetic storm. This storm is a result of a fast-moving stream of solar wind emanating from a coronal hole on the sun, which is now impacting Earth's magnetic field. Initially forecast as a G1 minor storm, the conditions were upgraded, indicating a stronger potential for widespread aurora displays. The geomagnetic disturbance began on Friday, March 13, 2026, and is expected to reach peak activity on Saturday, March 14, with elevated conditions potentially lingering through Monday, March 16. The timing near the spring equinox on March 20 also contributes to the heightened likelihood of vivid Northern Lights.

Why It Matters

This increased geomagnetic activity presents a unique opportunity for sky-gazers in northern latitudes, including several U.S. states and parts of Canada, to witness the aurora borealis, potentially even low on the northern horizon in areas where it's not typically visible. While G2-class storms are generally not severe enough to cause widespread disruptions, space weather events are closely monitored by forecasters due to their potential to impact power grids, satellite communications, and navigation systems. The trending keyword reflects significant public interest in this natural phenomenon and the desire to experience a spectacular celestial event.

Geographic Location

• Alaska, United States (aurora visibility)
• Northern regions of Washington, Idaho, Montana, North Dakota, South Dakota, Minnesota, Wisconsin, Michigan, and Maine, United States (aurora visibility)
• Northern regions of Oregon, Wyoming, Nebraska, Iowa, Illinois, Indiana, Ohio, New York, Vermont, and New Hampshire, United States (possible faint aurora visibility)
• Canada (aurora visibility)
• Northern Scotland (aurora visibility)
• Scandinavia (aurora visibility)