Which U.S. states have a real chance of seeing the northern lights tonight? A fresh burst of solar activity is expected to push aurora visibility farther south than usual, giving parts of the northern United States a better-than-normal shot at the sky glow typically associated with higher latitudes. The setup centers on a coronal mass ejection, a cloud of solar plasma and magnetic field that can disturb Earth’s magnetic shield when it arrives.
According to NOAA’s forecast, tonight’s conditions could reach a G2-class geomagnetic storm, a moderate level on the agency’s space weather scale. That matters because G2 storms are strong enough for aurora to be seen unusually far south, with NOAA’s scale noting that displays at this level have reached as low as New York and Idaho. The forecast view line also places parts of Idaho, Illinois, Iowa, Maine, Michigan, Minnesota, Montana, Nebraska, New Hampshire, New York, North Dakota, Oregon, South Dakota, Vermont, Washington, Wisconsin and Wyoming in the potential viewing zone.
The reason the lights sometimes spill beyond their usual range starts at the sun. It constantly releases a stream of charged particles known as solar wind, but larger eruptions can launch denser clouds toward Earth. When one of those clouds arrives, it can rattle the planet’s magnetic field and send energized particles funneling toward the poles, where they collide with gases in the upper atmosphere and create the familiar curtains of green, red, purple, and blue. As NOAA forecaster Shawn Dahl said during a previous stretch of heightened activity, “It was a pretty extensive display yet again.” Timing still matters.
The aurora is not visible in daylight, and the best window is usually just after sunset, before sunrise, or near local midnight when the sky is darkest. Clear weather is just as important as solar activity, and a dark location away from urban light pollution can make the difference between a faint smudge on the horizon and a recognizable display. Even when the lights appear weak to the eye, smartphone cameras often pick them up more easily because their sensors are more sensitive in low light.
This broader visibility is also part of a larger pattern. The sun has been passing through a highly active phase tied to its 11-year solar cycle, which drives periods of stronger flare and storm activity. During solar maximum, geomagnetic storms become more frequent, increasing both the chances of dramatic auroras and the need for closer monitoring of satellites, communications, and power systems. NOAA’s scale notes that even moderate storms can trigger voltage alarms in high-latitude power networks and interfere with some radio conditions.
If activity holds into tomorrow, the sky could remain active, though at a lower level. NOAA is also tracking a G1-class geomagnetic storm for the following night, which is weaker but still capable of producing visible aurora in favorable northern locations. March is already one of the better months for sightings, so for skywatchers under clear skies, the forecast puts a rare kind of night within reach.
