The northern lights may make an appearance this week in Alaska and in mostly states that border Canada, as coronal masses ejected from the sun are expected to reach Earth overnight Monday or Tuesday. That gives skywatchers a narrow window to look up and a limited map of where the display is most likely to show itself.
The timing is what makes the forecast matter now. If the solar material arrives overnight Monday or Tuesday, the best chance to see the aurora comes this week, not later, and the viewing area is expected to stay concentrated in Alaska and across the northern edge of the United States.
Even a faint display can be enough for the naked eye, but photographs often tell a different story. Auroras that look washed out in person can show vivid colors when a smartphone captures them, which is why people hoping for a clear sighting may still end up with a much brighter image in their camera roll than in the sky.
That leaves one question with the most weight: how strong will the display actually be when the solar material arrives? The forecast points to visibility, but not to a guarantee of a broad, bright show, and that is the difference between a passing glow and a night sky worth staying up for.
Aurora activity also tends to be more common around the equinoxes because of the orientation of Earth’s magnetic field. That is the background that helps explain why these moments cluster when they do, but the immediate story is still the same: the northern lights may be back this week, and the best chance to catch them is in Alaska and the states closest to Canada.
