NOAA has upgraded its aurora forecast, with strong to severe geomagnetic storms possible Thursday and Friday, raising Northern Lights chances across 25 U.S. states.

The northern lights may be visible in Canada and the U.S. overnight on Thursday, June 4, through Friday, June 5, after a forecast for G1 geomagnetic storming.

NOAA has upgraded its aurora forecast, with strong to severe geomagnetic storms possible Thursday and Friday, raising Northern Lights chances across 25 U.S. states.