When these particles interact with Earth’s magnetic field, they create geomagnetic storms capable of producing the breathtaking aurora borealis, also known as the Northern Lights.
The National Oceanic and Atmospheric Administration (NOAA) predicts that the geomagnetic activity could push the aurora visibility line farther south than usual. In some cases, the lights may be visible as far south as Tennessee.
Solar Cycle 25 Driving Increased Aurora Activity
The current solar activity is part of Solar Cycle 25, an approximately 11-year cycle of the Sun’s magnetic activity. Scientists expect this cycle to peak around 2026, which means aurora displays are becoming more frequent and more intense.
This surge in solar winds is expected to generate geomagnetic storms reaching a Kp index of 4 to 5, strong enough to push aurora visibility into several northern U.S. states.
March is historically one of the most active months for auroras because solar wind interacts more efficiently with Earth’s magnetosphere during the period around the vernal equinox.
Top U.S. States With the Best Chance to See the Northern Lights
If the geomagnetic storm reaches the expected strength, the aurora may be visible in several northern states. Remote areas with minimal light pollution will provide the best viewing conditions.
Washington
Best viewing areas include the Olympic Peninsula and North Cascades where dark skies and northern horizons provide excellent viewing opportunities. Estimated Kp needed: 5.
Montana
Locations such as Glacier National Park and Flathead Lake offer wide open skies that are ideal for aurora viewing. Estimated Kp needed: 4.
North Dakota
Theodore Roosevelt National Park is one of the best locations in the state thanks to its minimal light pollution. Estimated Kp needed: 4.
Minnesota
The Boundary Waters and Voyageurs National Park provide some of the darkest skies in the region. Estimated Kp needed: 4.
Michigan
Michigan’s Upper Peninsula and Mackinac Island are popular northern lights viewing locations. Estimated Kp needed: 4.
Maine
Aroostook County and Moosehead Lake provide excellent northern views for potential aurora sightings. Estimated Kp needed: 5.
Understanding the Kp Index
The Kp index is used by space weather scientists to measure geomagnetic activity on a scale from 0 to 9.
- Kp 0–3: Quiet activity, auroras mostly visible near the Arctic.
- Kp 4–5: Moderate geomagnetic storms capable of pushing aurora visibility into northern U.S. states.
- Kp 6+: Strong storms where auroras can be seen much farther south.
Tonight’s predicted Kp index of 4 to 5 means residents in northern states could see auroras along the horizon if skies remain clear.
Best Time to Watch the Northern Lights
The best time to view the aurora tonight is between 10:00 p.m. and 2:00 a.m., when the sky is darkest and geomagnetic activity typically peaks.
To improve your chances of seeing the lights:
- Find a location far from city lights.
- Look toward the northern horizon.
- Check cloud cover before heading out.
- Give your eyes time to adjust to the darkness.
Northern Lights Photography Tips
Capturing auroras can be easier with the right camera settings.
- Use a tripod to keep the camera steady.
- Choose a wide-angle lens with a small f-stop such as f/2.8.
- Set exposure between 5 to 15 seconds.
- Use manual focus and keep ISO between 800 and 3200.
Even modern smartphones with night mode may capture the aurora if the display becomes strong enough.
The Science Behind the Northern Lights
The aurora borealis forms when charged particles from the Sun collide with gases in Earth’s upper atmosphere.
- Oxygen atoms create green and red light.
- Nitrogen molecules produce blue and purple hues.
These colorful displays appear near Earth’s magnetic poles where solar particles are funneled along magnetic field lines.
Final Tips Before Heading Out Tonight
Aurora displays can be unpredictable. The lights may suddenly brighten for a few minutes and then fade away just as quickly.
If you plan to watch the aurora tonight:
- Dress warmly for cold nighttime temperatures.
- Bring a red flashlight to preserve night vision.
- Monitor real-time updates from the NOAA Space Weather Prediction Center.
Whether you’re an experienced astrophotographer or simply a curious skywatcher, tonight could provide a rare opportunity to witness one of nature’s most beautiful atmospheric displays.
FAQs
Q1 When is the best time to see the aurora tonight?
The best viewing window is between 10:00 p.m. and 2:00 a.m. when the sky is darkest and geomagnetic activity tends to peak.
Q2 Can I see the Northern Lights if the sky is cloudy?
No. Even thin cloud cover can block the view of auroras because they occur high above the atmosphere but still require clear skies to be visible.
Q3 Do I need a professional camera?
Professional cameras produce the best images, but smartphones with night mode can sometimes capture auroras during strong displays.