PITTSBURGH, Pa. (KDKA) – The Northern Lights have been spotted again in the Pittsburgh area!

The colorful aurorae were observed in Butler late Monday evening, just after 10 p.m., by Julie Krenitsky.

Marie Brosi shared a photo with KDKA First Alert Meteorologist Ray Petelin, which was captured near Raccoon Creek State Park.

Jan Copeland McElhinny captured some bright green aurora in Evans City and shared the photo with KDKA First Alert Meteorologist Ray Petelin.

The Northern Lights were also seen by Ed Thompson in Whitehall around 2am

Bright pink and green auroras were also captured in Indiana County.

The Northern Lights have already graced the Pittsburgh area a few times this year.

Both the Northern Lights and the Perseid meteor shower were visible one evening in August, providing a dazzling celestial show. Green, purple, red and pink shades were also visible in the skies of western Pennsylvania back in May.

What causes the Northern Lights?

When a geomagnetic storm occurs, solar wind is sent towards Earth. Charged protons and electrons follow the Earth’s magnetic field and enter the Earth where the magnetic fields are weakest: the poles. The electrons collide with all the different molecules that make up our atmosphere, creating a dazzling display of colors in the sky.

It is rare for the Northern Lights to be seen so clearly this far south. Usually we’re lucky if it only happens once a year.