Geomagnetic Storm in Progress: Northern Lights Continue

Night Photography  •  Photography News  •  Photography Tips

The night sky may soon put on one of its most dazzling displays. The NOAA Space Weather Prediction Center has issued a geomagnetic storm watch, forecasting G2 (Moderate) to G3 (Strong) storm levels between September 1 and 2, 2025. These storms are triggered by a coronal mass ejection (CME) from the sun, and when the charged particles collide with Earth’s magnetic field, they can ignite brilliant auroras across the sky. For photographers, this is more than just a scientific update—it’s a potential once-in-a-season opportunity to capture nature at its most dramatic.

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Photo captured by Ken Cheung

So what can you expect? During a G2 storm, auroras are typically visible across Canada, northern Europe, and high-latitude parts of the United States. But when the storm strengthens to G3, as forecasters are predicting, the auroral oval can expand southward, giving skywatchers in more mid-latitude regions a shot at seeing shimmering curtains of green, red, and purple light dancing overhead. That means photographers in places not usually treated to the northern lights—such as the northern U.S. states, central Europe, and parts of Asia—may be in luck if skies are clear.

Preparation is key when it comes to photographing the aurora. A wide-angle lens with a fast aperture (something in the f/2.8 range or faster) will let in as much light as possible, while keeping the field of view broad enough to capture sweeping skies. Long exposures—usually between 5 and 15 seconds—paired with an ISO setting in the 800 to 3200 range tend to reveal the colors and motion of the aurora without excessive noise. Manual focus is essential; aim for infinity or lock onto a bright star if you can. And of course, a sturdy tripod and remote shutter release will keep your shots crisp during longer exposures.

Timing will depend on where you’re located. The initial activity is expected late on September 1 (UTC), with stronger storm conditions spilling into September 2. For photographers in North America, that translates into the late evening of September 1 and the early morning hours of September 2—prime aurora-hunting time. For those in Europe, the peak hours may come closer to the predawn skies of September 2. Wherever you are, the key is to escape city lights and find a dark location with a clear northern horizon. Lakes, coastlines, or open fields can add depth and reflection to your images.

Of course, the weather is the final variable. Even the most powerful auroral display is useless to photographers if cloud cover blocks the view. Keeping an eye on local forecasts and remaining flexible with your travel plans will improve your chances of success. Layering up for comfort is also wise, as chasing auroras often means long hours outdoors in chilly nighttime air.

The next few nights could deliver a rare gift from the cosmos. With the right preparation, patience, and a little luck, photographers stand to capture some of the most memorable images of the year. Whether you’re in the far north where auroras are more common or further south where they’re a rare delight, the September 1–2 geomagnetic storm is worth watching. If the skies cooperate, your camera may record more than just pictures—it could capture one of those unforgettable moments when Earth and space connect in color and light.

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