The only supermoon for 2017 happens this weekend. Will Western Colorado get a chance to see it? Yes and no.

What exactly is a supermoon? The term refers to the event when the moon appears bigger and brighter than a typical full moon. Astronomers refer to them as a perigean full moon. It occurs when a full moon is at its closest point in orbit around the Earth.

How much bigger? According to, a supermoon can appear to be up to 14% bigger and 30% brighter than your typical full moon at its farthest distance from Earth.

The moon will be full on the morning of Sunday, December 3, at 8:46 in the MT time zone. As you can imagine, it's going to be difficult to see the moon in broad daylight. Don't worry, though. The moon will still appear larger than normal when it rises Sunday evening.

When that happens, Western Colorado is really in for a treat. With the surrounding mountains, you'll enjoy what enthusiasts call the "moon illusion." In this instance, the moon will appear huge when compared to objects on the horizon.

What about Grand Junction's weather on Sunday? Well, therein lies the problem. According to the National Weather Service, the daytime hours on Sunday are mostly sunny. Nighttime, however, brings mostly cloudy skies with a chance of rain and snow.

Regardless of what Western Colorado's weather might bring, be sure to step outside Sunday and take a look at the supermoon. This is the only one we'll see in 2017.

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