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In this Forecast Feed, AccuWeather's Bernie Rayno breaks down the details of dangerous weather that will bring thunderstorms, high winds and snow this weekend in the central U.S.
Transcript
00:00All right, we have a triple threat this weekend with severe weather. We have wind and we have
00:07a snowstorm. Take a look at what this weekend storm is going to do. We begin with the severe
00:13weather threat. We have a moderate risk right now from Indy down toward Memphis. Then look at the
00:20snowstorm that you're going to see in the upper Midwest, just north of Green Bay, but even toward
00:25Green Bay and Minneapolis, several inches, even a foot of snow here. And this storm is going to have
00:30a lot of wind associated with it as well. So you have one, two, three big impacts with this storm.
00:39Now, let me show you where it is right now. And the energy that we're looking at is off the
00:45British
00:45Columbia coast right now. Here it is. I'll circle it right in here. The other thing that you see is
00:52look how fast things are moving south of this piece of energy. This tells you, you have a lot
00:59of wind energy right now across the country. And that's why this storm is really going to intensify
01:06moving forward here. I want to show you the upper air pattern here as we go through the rest of
01:13today
01:14here. Let's begin as we head toward this evening. I'll put a little toolbox so you can see what I'm
01:18looking at. So here's that little piece of energy right here off the British Columbia coast. So this
01:23is going to be coming into the Northwest as we move in the Friday night. Now, as we get in
01:30the
01:30Saturday, watch how the whole jet stream takes a pronounced dip to the south right here. See how it
01:36does that? Friday night, Sunday afternoon. Friday night, Sunday afternoon. Then I'll stop at Sunday
01:43evening. Take a look at the dip in the jet stream here. A lot of energy within this zone as
01:51well.
01:51Right in here, you can see all the white. And not only that, because you have that big dip in
01:57the jet
01:57stream, look at the temperatures that we're going to see with this on by the time we get in the
02:02Sunday
02:03evening. You have temperatures rising all the way up to near 70 degrees and then temperatures in the
02:08single numbers here across the Midwest. That's why this storm is really going to intensify Sunday
02:15afternoon, Sunday night. Let me show you the upper area. This is European-American model. European-American
02:20model. The only difference between them is you can see the American model cuts off an upper low. It has
02:26it a little stronger, a little quicker here. It has a cutoff low over eastern Iowa. The European
02:32waits until there, Monday morning, to cut that upper low. You see how you have this closed contour in
02:39here? Right in here. The European's a little slower with it. By the time we get in the Monday morning,
02:45though, again, the difference in the modeling is they both have the storm in the right spot,
02:50but the GFS is a little stronger with it. A little stronger. And therefore, it's predicting a little
02:56more in the way of snow. Follow the upper low, even on the European, takes it across northern
03:03Wisconsin and northern Michigan, which means on the northern side, that's where you're going to get
03:07the heaviest snow. And I'll even show you the American model. There it is. You can see it pushing
03:12just northwest of Chicago to where of Milwaukee and then in toward the eastern or central upper
03:19peninsula of Michigan Monday morning. That's where your heaviest snow is going to be. Let me show you
03:24the surface map here as we go through our Sunday. We begin Sunday evening. There it is. The American
03:31model, the European model, kind of in the same spot. The only difference is GFS is a little stronger
03:37with it. You see the GFS has a storm center right there. Sunday evening, 983, Europeans 991. So it's a
03:47little faster and a little weaker, but they both show that storm track right across central parts of
03:53Michigan. This is 2 a.m. on Monday. Europe, GFS European, GFS European. Now, the other thing you'll
04:00notice, European doesn't have as much snow on the backside. You see that? I don't think that's right.
04:08I think the GFS is going to be closer to the solution that you get more of snow on the
04:13backside
04:14of this storm than what the European is showing. And let's show this again. Even the European,
04:20the snow starts in Minneapolis Saturday night, continues in the Sunday morning, heavy snow,
04:26northern Wisconsin in the upper peninsula of Michigan, Sunday night in the Monday. You see
04:31that? That, this is the European. The GFS a little bulkier with the precipitation, but the same idea,
04:38northern side of the storm, heavy snow in Minneapolis. There it is, Sunday morning, Sunday
04:43afternoon. And then the snow just continues to fall in northern Wisconsin. And notice the American
04:49model has a beginning Saturday night and continuing to snow in that area heavily right in the Monday
04:56morning. I want to show you the snowfall map here really quickly, give you an idea of what we're
05:01looking at. Then I want to get into the severe weather. All right. I think from Minneapolis toward
05:06Green Bay, you're going to get about a foot of snow out of this. Now, in Green Bay and much
05:11of
05:12Wisconsin here from Green Bay all the way down in Milwaukee, you're going to have sleet mixing in.
05:17That's going to hold down accumulations. That's why I don't think we're going to see
05:20that much more than a foot in Green Bay because of the sleet mixing in. Minneapolis, you're all snow,
05:28but there will be a zone. It may have to be tightened up a little bit, but certainly the Sioux
05:32and in northern parts of Wisconsin, north of Green Bay, you're going to probably end up with two feet
05:37of snow out of this. And there may be spots that get a little more than that. And that's,
05:41you can see the accumulation map that we're talking about right in here. All right. Now, again, Green
05:47Bay, I think you're getting a foot. Minneapolis, you're getting a foot. You start getting down south
05:52of Green Bay. It's a 5 to 10, 6 to 12 inches of snow. I don't think you're going to
05:56get a foot of
05:56snow, though, too much farther south of Green Bay because of the mixing. All right. Chicago, I think
06:02you're going to get a couple of inches of snow. You can get three or four inches all the way
06:06down in the
06:07southern parts of Wisconsin, probably about a four to eight in Minneapolis. Des Moines, you can get a
06:12coating to an inch or two. Windblown snow with this. Now, quickly, I do also, and let me put this
06:18on full
06:19so you can see this a little better here. There's the accumulations here. Now, severe weather. This is
06:26mostly going to be damaging winds. But in that moderate area, just to the west of Indy toward Memphis,
06:33I think we are going to get some isolated reports of tornadoes. How many? I think a handful,
06:40a few to several. But damaging winds are going to be the main threat. And we have a lot of
06:46wind
06:46around this storm as well.
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