What is a geomagnetic storm, and should my family prepare for one?

A solar eruption in late September 2026 produced a minor geomagnetic storm that brought northern lights alerts to 11 northern US states, according to Mixvale. NOAA publishes space weather alerts. A battery radio, flashlights, and spare batteries are useful if a storm disrupts power or GPS.

Northern lights in 11 states

BBC Sky at Night Magazine reports that geomagnetic storms raised aurora chances across October 8 to 11, 2026, including a G2 storm.

What happened

Mixvale reports that a solar eruption from September 28 produced a minor G1 storm when a glancing blow hit Earth. Northern lights alerts reached 11 northern US states. Sky at Night says NOAA forecast weakening conditions for the night of October 10 and 11. Reports on the strength of the early October storm vary, so NOAA's space weather data is the best check.

What it means for your home

The reports cited here describe aurora displays and alerts, not outages. Strong storms, though, can stress power grids and GPS, which is why a prepared household keeps light, information, and navigation tools ready.

What to do this week

Bookmark NOAA's space weather alerts and check them when northern lights are in the news.
Charge your battery radio and check that your flashlights work.
Keep spare batteries in one labeled spot.
Keep a paper map in the car in case GPS is unreliable.
Keep a charged power bank with each family phone.

For a plan that covers the first three days of any outage, read The 72-hour blackout plan.

This briefing is general information, not medical, legal or electrical advice. In an emergency, call 911 or your local emergency number.

Northern lights in 11 states: what solar storms mean for your home