DENVER (KDVR) — Colors of pink, purple and green moved across the night sky in Colorado on Sunday night, leaving some residents with the sight of the northern lights.

The phenomenon is known as an aurora borealis, which occurs when coronal mass ejections reach the Earth’s magnetic field and spark a geomagnetic storm, according to NASA. Currents created by the interaction send particles to the north and south poles, creating auroras when they interact with oxygen and nitrogen.

This phenomenon was seen across Colorado on Sunday night, with people capturing the sight near Willard and Elizabeth. In Elizabeth, one viewer was able to video the northern lights shift across the sky and change colors between 8 p.m. and 9:20 p.m.

Here’s what it looked like:

Aurora borealis seen in Elizabeth on Sept. 14 (Credit: Karl Flick)

While several areas saw the northern lights in Colorado on Sunday night, FOX31 Pinpoint Weather Meteorologist Travis Michels said the chances for seeing them again on Monday night are fairly low.

Michels said that usually a KPI, Planetary K-index, of 8+ means a good chance of seeing the northern lights. Monday morning had a KPI of 6.67, which is usually moderate, but people were able to see it in areas where there was little light pollution.

There’s a KPI of 3 on Monday night and Colorado is outside of the National Oceanic and Atmospheric Administration, so chances are people in Colorado won’t be able to see the northern lights. That said, the aurora borealis has been seen in Colorado, despite being outside the mainstream view line, before.