A geomagnetic storm began Monday night across the Northern Hemisphere, but whether Chicago would get a glimpse of the Northern Lights remained to be seen.

A Coronal Mass Ejection was emitted from the sun over the weekend and arrived at Earth at approximately 5 p.m. Monday, according to the NOAA Space Weather Prediction Center. The occurrence was expected, meaning much of the globe was still on track to see the Northern Lights, also known as aurora borealis.

But it's not a guarantee.

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When it comes to the Northern Lights, NBC 5 Storm Team Meteorologist Kevin Jeanes said it's important to remember a few things:

These forecast are challenging and not perfect

Manage your expectations. Images you see on social media

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