SEE: Graphics Show How Bitter Cold Will Take Over Wyoming

Let's have a look at how today's cold front moves into Wyoming.

For the visual, I'm using an app and a website called WINDY.  Windy is designed to give you a visual of wind, clouds, temperature, and waves.

Today's cold front is a dangerous one. It will move slowly into the region.

Temperatures will drop suddenly into negative numbers.

The following pictures are from the WINDY website and app.

This is what told cold air looked like at 3:30 AM Wednesday.

You can see that purple pushing into the northern part of our state.

That's the bitter cold.

WINDY has a slide bar that allows you to move forward in time and backward to see what did happen and what is predicted to happen.

Using that slide bar I moved the time up to 8 am.

You'll notice on the slide below that the cold wraps around the Bighorn mountains.

That's because this cold is so intense it sinks to the lowest areas. So if you are down low you'll get colder than if you are up high.

That temperature inversion is typical with fronts like these.

By 8 am Wednesday morning the cold is below Kaycee and Wright. Casper is about to get it.

Cold is so heavy the wind slows down.

But in the southern parts of Wyoming, the wind is howling.

I switched over to see the wind and got this picture from WINDY.

You can see high-intensity wind where the front has not yet reached.

Back to the temperature, by 2 pm the cold has reached Wheatland.

Look at some of those negative numbers. That's quite a drop.

You'll also see the coldest air wrapping around the Laramie mountain range as once again the coldest air sinks and the warmer air is high above.

Because of the mountains, Cody and Lander are in bitter cold but the areas to the west are much warmer.

The front is being pushed to one side by the Rockies.

From here let's just jump forward to 2 am Thursday.

Look at those negative numbers in the screen grab below.

This is some serious bitter cold.

Actually dangerous cold.

Anyone and anything that can be brought inside should be.

This system does not stop with us. It's taking over the nation.

It's also doing the same thing on the other side of the globe.