Northern Lights Tonight: NOAA Forecast Shows These 15 States Fall in Sunday’s Au...

Excitement is building across the northern United States as the National Oceanic and Atmospheric Administration (NOAA) forecasts minor to moderate geomagnetic storms for Sunday night, potentially making the Northern Lights visible in at least 15 states. With a Kp index reading of 5 out of 9—indicating G1-level storm conditions—forecasters predict enhanced auroral brightness and movement, allowing residents to catch the celestial spectacle without venturing to higher latitudes.

NOAA’s three-day space weather outlook attributes the activity to elevated solar wind speeds originating from a coronal hole on the Sun, a darker and cooler region on its surface. These high-speed streams are interacting with slower-moving solar particles, creating a compression region known as a co-rotating interaction region (CIR). As this region reaches Earth, it interacts with the planet’s magnetic field, sparking geomagnetic storms that push the auroral oval farther south.

The fast-moving solar winds from the coronal hole are colliding with slower solar wind plasma ahead of them, compressing energy and amplifying geomagnetic disturbances upon arrival at Earth. This dynamic is the primary driver behind the current Northern Lights forecast for tonight, offering improved viewing opportunities for millions of Americans in lower latitudes.

NOAA scientists have also noted that residual effects from a recent coronal mass ejection (CME) could contribute to the elevated activity. Although not classified as a severe storm, the Kp index of 5 markedly boosts the chances of visible auroras in states bordering Canada and parts of the Upper Midwest.

If conditions hold as predicted, the aurora borealis—also known as the Northern Lights—could light up the night sky in Washington, Idaho, Montana, North Dakota, South Dakota, and Alaska. Visibility may extend to parts of Minnesota, Wisconsin, northern Iowa, northern Michigan, northern New York, Vermont, New Hampshire, and Maine, placing these regions within NOAA’s projected aurora view line.

The forecast highlights how even moderate geomagnetic storms can dramatically expand the auroral oval, a phenomenon vividly illustrated by past displays lighting up the night sky off Lake Michigan. Skywatchers in these areas are advised to seek dark, clear locations away from city lights for the best chance to witness the dancing lights.