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A CHANGE IN THE AIR...

Temperatures will be running near and above normal to start the week, but there continues to be signs on colder air arriving during the end of the week/weekend.

Here's a look at the temperature trend on both the European model:

And the GFS:

You can see the downward trend with temperatures starting at the end of the week with some even colder air arriving around the 21-23.

It will be begin with the storm system moving in Tuesday into Wednesday, sending temperatures into the 40s and 50s and bringing rain to the region:

This will be a slow moving system and peak temperatures will likely come sometime on Wednesday:

Some rain will continue Wednesday with a changeover to a wintry mix in northeast Iowa:

On the backside of the low pressure system there will be snow that wraps around into the area late Thursday into Friday:

There are some differences in how much snow falls, but there will be some snow showers possible through the day Friday. In the upper levels of the atmosphere we have a big trough that will continue to swirl cold air down:

And we're starting to see more certainty of that colder and colder air moving in:

Enjoy the milder air while it lasts! RK

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