Strong geomagnetic activity expected from Alaska to New York
According to the National Oceanic and Atmospheric Administration (NOAA), increased geomagnetic activity is once again opening the door for northern lights sightings across much of the northern United States, particularly over the weekend. Following a surprise G3 geomagnetic storm on May 28, which sparked auroras visible across 17 states and as far south as Italy, forecasters are keeping a close eye on conditions that may deliver another round of celestial displays.
High aurora chances in Alaska, Michigan, and Maine
The highest probability of observing auroras remains in Alaska, along with northern Michigan and Maine, especially if the activity reaches G1 storm levels, the lowest on NOAA’s geomagnetic scale. However, past events have shown that auroras can dip much farther south than expected, particularly during G3 storms, which can push the visible range as far as Illinois and Oregon.
G3 storm on May 28 caught forecasters off guard
Earlier this week, a storm initially forecasted as G1 escalated rapidly into a G3 event, surprising observers and delivering vivid auroras over a broad swath of the U.S., including areas that rarely experience such phenomena. This unexpected uptick demonstrates how space weather can evolve quickly, catching even experts off guard.
Areas most likely to see the aurora this weekend
According to NOAA’s Space Weather Prediction Center, residents in the following states have a notable chance to witness aurora borealis displays tonight and throughout the weekend: Alaska, Montana, North Dakota, Minnesota, upper Michigan, Wisconsin, Idaho, Vermont, Maine, New Hampshire, New York, South Dakota, Wyoming, Washington, and Iowa.
Best time and conditions for viewing
During this time of year, the optimal window to catch the northern lights is around 1:00 to 2:00 a.m. local time, when the sky is darkest. Viewers are encouraged to position themselves in north-facing locations, away from urban light pollution, to maximize visibility. The northern horizon will offer the clearest view, especially under clear skies.
Stay alert for further updates from NOAA, as storm intensity projections can shift rapidly, altering both the timing and geographic range of visible auroras.
