The Northern Lights may be visible in several northern and Midwestern states again Friday as the sun approaches the peak of its solar cycle, which is the cause of increased aurora activity. Friday night’s aurora has a Kp index of three,

In simpler terms, the storm could cause northern lights to be visible in areas across the northern U.S. The outbreak of northern lights comes after a coronal mass ejection launched from the Sun on Saturday is expected to arrive at Earth Monday night.

Northern lights could be visible over mid-latitudes across the US and Europe tonight, Sept. 16. A geomagnetic storm watch has been issued by NOAA's Space Weather Prediction Center.

Charged particles crashing into Earth are expected to create strong solar storm conditions early Monday morning, prompting a Geomagnetic Storm Watch as the Northern Lights could be visible farther south than usual.

Missed the fun? There’s still great space spotting Tuesday night, with the full harvest blood eclipse supermoon.

If it hits as night falls in the U.S. on Monday, aurora could be visible as far south as Iowa and Pennsylvania. If it arrives earlier, northern Europe could see the display.

Vibrant auroras could be visible as far south as Oregon and Pennsylvania tonight as Earth reels from a "strong" G3-class geomagnetic storm. However, the nearly full Harvest Moon may complicate viewing opportunities.

Conditions sparked by the CMEs became so strong Monday night that the SWPC issued a “severe geomagnetic storm alert” around 11 p.m. ET. According to the SWPC, the “major disturbance in Earth’s magnetic field” was expected to reach G4 strength.