Where you may see northern lights this weekend, as a geomagnetic storm heads to Earth The Washington PostAurora alert: Possible geomagnetic storm could spark northern lights as far south as Illinois and Oregon tonight Space.comNorthern Lights Return: Powerful Solar Flare May Cause Aurora Borealis To Be Visible In These States ForbesLook to the sky: Rare chance to see Northern Lights in Philadelphia region Friday NBC PhiladelphiaStrong Solar Flare Erupts from Sun – Solar Cycle 25 NASA Blogs