Late-week storm to bring snow, wind and t-storms

AccuWeather

In today's Forecast Feed, Bernie Rayno takes a look at a storm coming later this week.

Transcript

00:00We're going to take, continue to take a look at the late week storm that will be pushing

00:10across the plains and the Midwest. And I think this is the storm that will bring some snow. I

00:15don't think it's a huge snow producer, but it's also going to produce some rain. And also the

00:21first, well, the second threat, there's a threat for severe weather a little on Thursday, but I do

00:25think there could be some severe weather on Friday as well. All right, let me take you to the

00:29satellite picture because I want to show you where this storm is located here. There it is.

00:36Let me put it in the motion for you here. All right, there we go. So we've got this first storm

00:41off the California coast. We talked about that yesterday. That's going to primarily bring rain

00:45to the plains and the Midwest as we head into Wednesday night and Thursday. This is the storm

00:51though, that's going to change the pattern a little bit and bring the possibility for snow.

00:56It's coming in two pieces. You have one piece here. This will be coming into California and

01:01then this piece here across Alaska. Think about it this way. This is the storm. And then this

01:07is going to be steering this storm and also bringing an injection of cold air into the storm

01:13to provide a little bit of snow on the backside. So it's complicated, but you see this set up

01:18quite a bit across the United States. Let's go to the 500 millibar and I can show you what I mean.

01:23So this is tomorrow afternoon. Here's your first storm. This is one off the California coast.

01:31Here are the two different pieces that I talked about coming along the West coast of the United

01:35States. Let's play it forward. This is Thursday afternoon. So here's what I'm talking about.

01:40This, this is the initial storm that's going to provide rain on Thursday, but here's the storm.

01:46And then here's the cold air injection. The Northern, think about this. The Northern piece

01:51provides the cold air. The Southern piece provides the storm for this to be a big, to produce a lot of

01:59snow. What has to happen is, is that this energy has to get out ahead of the Northern piece,

02:06strengthen, and then that's where you get a big snow. But if this piece of energy in a sense moves

02:15at the same speed, then what happens is the storm that forms is going to be weaker and then you would

02:21get less precipitation. And that's kind of what it's looking like right now. Let me show you how this

02:26is going to evolve here as we move forward here. So let's go into Friday morning. Now, see what's

02:31going on here? You've got your Northern piece of energy, but your storm or Southern piece is kind of

02:37lagging a little bit. It's almost in a sense moving with at the same speed as the Northern piece.

02:43So what happens is instead of getting a storm to strengthen, it's almost like you just get a cold

02:49front moving across the Southern tier, tier U S and you don't get as much precipitation. Take a look

02:55at the surface map. See, this is what it looks like. You have a frontal boundary, but you really

02:59don't have a week. You don't really have a storm. Watch what happens Friday evening. So here we go.

03:05Here we go. There we go again. There we go. This is Friday night. So here's the Northern piece of

03:10energy. See the Southern piece of energy is coming to the East. So you will get a storm, but it looks

03:18very weak in a sense. Instead of a consoled piece of energy, this energy looks like a rubber band.

03:25It's stretched out. So that tells me it's a weak storm. And when you look at the surface map, it is

03:30here's the storm way down here. 1,012 millibars. That's a very weak storm. Now watch what happens

03:36moving forward. Here we go. This is Saturday morning, Saturday afternoon. There it is. So

03:42here's your Northern piece strengthening a little bit. And you could see this whole Southern piece

03:49kind of stretched out like a rubber band. So what happens is you get a weaker storm. There it is

03:55right there. You see that? 1,004 millibars. So that tells me because you have a weak storm

04:02along the boundary, yes, there's going to be accumulating snow. Dodge City, Des Moines,

04:08I think just south of Minneapolis toward Green Bay and in the eastern part of the upper peninsula

04:13of Michigan in this area. But I think we're talking about accumulations of a couple of inches,

04:18a few inches. Perhaps there could be more near the lakes because in time, as we get in the

04:24Saturday night, you see the upper piece of energy here, start to strengthen a little bit. Watch.

04:29Boom, boom, boom, boom. Right there. You see that? Now, because of that, as the storm comes north,

04:36this is where it begins to strengthen. But instead of a strengthening down here across the mid-south and

04:43having higher snow amounts back across the Midwest, the storm waits to strengthen until it's a lot farther

04:49north. See, there it goes. So bigger snows will be farther north. But I think for many locations,

04:56you're talking about one of the three inches of snow, except northern lower peninsula of Michigan

05:01and the eastern UP. Now, the other thing this storm will do is because it looks like it will

05:08strengthen Saturday night, wind starts to be a problem. And then that's where we start getting

05:15wind. Take a look at this. These are lines of equal pressure called isobars. The more lines in a given

05:22area, the stronger the wind is. And this looks like the winds are going to be quite gusty here

05:27in Chicago Saturday night. Now, I mentioned that because we have the NFL, the playoff games this

05:35weekend. Now, this storm will have some impact. But if you look at all of the games on Saturday,

05:41Sunday and Monday, the one game to me that's going to be impacted the most would be the Green Bay game

05:48at Chicago at Soldier Field here. Let me take this off so you can see everything here. Let me put this

05:56on full here. So let me put this off there. Okay. I don't think temperatures are a huge deal in the

06:0720s. But see, the wind can be a problem here. Look at the winds. Now, we've taken them down a little

06:14bit here. I still think we're looking at sustained winds here about 15 to 20 miles per hour, at least

06:20gusts to 30. And that's going to impact the game a little bit here with the wind. Accu-weather,

06:25real field temperatures in the teens. Not as cold as what I thought, but cold enough. Really quickly

06:30here, and I do want to end with this. The other story with this storm on the southeastern flank will be

06:36the possibility of severe weather Friday afternoon, Friday evening from Tennessee down toward the

06:41central Gulf Coast states. But I'd really worry about this area, Lake Charles Shreveport up in the

06:46Mississippi. Mostly damaging winds and some hail. I don't think there's a tornado threat, but we'll

06:53continue to keep you updated on this storm on the feed all week.

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