Deember-like temperatures early next week

AccuWeather

A dip in the jet stream will make it suddenly feel like winter this weekend into next week.

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00:00and all of a sudden, winter arrives this weekend and early next week, and that's the focus

00:08of today's feed. We have a big change coming, as it's going to be a relatively warm week,

00:14but take a look at what's coming early next week. Just a huge dip in the jet stream, and with that,

00:22the wind flow comes right out of the north, and this chilly air is going to be driven all the way

00:27down into the southeastern part of the United States as we head into the weekend and early

00:33next week, and all of a sudden, when you go back to work on Monday, it's going to feel like early to

00:38mid, even late December for some. All right, let me show you how we're going to get there here,

00:43and it all begins as it normally does in the Pacific here, because we've got a couple of storms here.

00:49This storm here will be coming into the northwest today. What that is going to do is that's going

00:55to come eastward. That'll bring some chillier air into the Midwest and northeast as we get in the

01:02Thursday and Friday, and then this next storm. You see this? And look where it is. It's all the way up

01:09here north of the Aleutian Islands in western Alaska. This is the storm that will bring a little bit of

01:16snow, and then eventually, it is the storm that's going to bring in the chill. Now, one of the reasons

01:23I like to feed so much, and again, this is also a spinoff of my Chaos to Clarity on the AccuWeather

01:30YouTube channel here, is I want to show you what I look at. I want to show you the models and show you

01:37the tools I use to make a forecast, and this is all powered by the AccuWeather Pro site here, so let me

01:42show you what we're looking at here. Now, if you watch this before, you know I'm always talking about the

01:48upper pattern, what we call 500 millibar here, and I want to show you, because remember this graphic?

01:54Let me go back. Remember this graphic? I showed you this at the top of the broadcast here, this one

01:59right here. Let me go to it. Let me show you how we get to this pattern here. It's right here. How do

02:08we get there from where we are right now? All right, with that, let me show you how we're going to get

02:13there. Let me put this on a two-shot. So here's what we're looking at here going forward. So here's

02:18the jet stream configuration this evening, and you can see you have what we call a zonal flow across

02:24the country, west-east. In the zonal flow, all the cold air is locked up in Canada. The problem is we

02:30have so many storms coming across the country, it remains locked up in Canada through the weekend, but

02:36then things change later this week. Let's track the storms. We talked about the storm coming into the

02:41northwest here today. Here it comes. Now watch what this does. This comes across the country. This is

02:46tomorrow evening. Here it is pushing across the northern Rockies. Watch what this is going to do.

02:51Comes across the area as we get into Friday. Here's Friday evening. So here it is right here. It's here

02:57now. By Friday evening, it comes in here. And you see what it does? It brings down a little shot of

03:02colder air across parts of Minnesota and Wisconsin. Then you've got this next storm. That's the one in

03:10western Canada, hot on its heels. Watch what this does as we get into the weekend. It comes all the way

03:16south. Look at this by Saturday evening. Here it is. This is Saturday evening. So that piece of energy,

03:22which is way up here, comes into the northwest and then starts coming into the central part of the U.S.,

03:27the Midwest, as we get into Saturday. Now, remember, we have a shot of colder air that came in preceding this

03:34across parts of Wisconsin and Minnesota. And my contention is, is that north of this piece of

03:40energy, there may be a little bit of snow with this as we get into Saturday. Now, there's a difference

03:45in the modeling on this. This is the European model. Look at the GFS, the American model. It's farther

03:51south. Look at that. European GFS. European GFS. European GFS. Look how much farther south this is.

03:59This suggests you can even get snow down into the Chicago area. How about that? Now, I don't believe

04:04that, but let me show you the surface panel with that. Let's go to the surface panel. So here we go.

04:09This is the storm coming in on Thursday. Watch it come tomorrow. Watch it come across the area. Here

04:14we go. Here we go. Here we go. Now, I'm going to stop this Saturday. Let's go Friday evening. So

04:19Friday, Friday evening, that storm leaves and you see this little blue line here, right in here.

04:26This is where you're roughly cold enough for snow. Now, the Europe, the American model suggests

04:32it's a little farther south towards Chicago. Watch as I play this forward. See, the American model

04:38has the colder air all the way there. You see this line? We call this the 540 line here,

04:43the thickness line. That suggests you can get snow into Chicago. That's the American model.

04:48The European model says, nah, it's a little farther north. I suspect the European model is correct.

04:54And then as we play this forward, watch this. Here comes a storm. Voila! By Sunday morning,

04:59you see that? Little bit of snow up in here across Michigan and Wisconsin. You see right in here.

05:06Watch the American model farther south. Look at that. The American model suggests it's going to

05:11snow all the way down into northern Indiana and Illinois. I don't personally believe that. I don't

05:16think the cold air is coming that deep. So I would say this is going to be rain for Chicago, northern

05:21Indiana, and northern Illinois. But we do want to let you know a little bit of snow, perhaps,

05:25from Green Bay toward Travis City toward, let's say, Saginaw. I don't think it's a lot. Maybe a

05:31coating to a half inch. Something to look for Saturday into Sunday. And then, watch this. Here's

05:39the upper level pattern. Now watch this. Remember I showed you that big dip in the jet stream? My

05:43goodness. Look at this. By Monday, you've got a huge dip in the jet stream all the way into the

05:51southeast. Follow the lines coming in right in out of the north. Let me show you what it looks like

05:56for temperatures here moving forward. So let's go to Saturday morning. Watch the blue. Saturday

06:03morning lows. Sunday morning lows. Monday morning lows. Tuesday morning lows. That's the freezing line

06:12Tuesday morning all the way down to Interstate 10. Interstate 20, excuse me. Let's take a look at

06:18some city forecast to give you an idea about how cold this is going to be. Let's take you to Chicago

06:23first here. Look at the high temperatures in Chicago as we go in the next week. Look at this

06:30area. Look at 30s Monday, Tuesday. How about Atlanta? Lower 50s. That's December. How about New

06:38York City early next week? December standings with temperatures in the 40s. Burr! Is it going to get

06:47cold early next week? And that's the story on the feed.

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