00:00A dangerous setup is unfolding Friday across the central U.S. with a high risk of severe weather from afternoon
00:06into Friday night.
00:08We're expecting everything but the kitchen sink, destructive hail, widespread damaging winds, tornadoes, and flooding.
00:16The future radar is showing a lot of how this severe weather is going to unfold tomorrow.
00:21The initiation time is between about 2 and 4 o'clock.
00:24Also, notice during this time the structure of the storms.
00:29They're what we call individual thunderstorms or what we call discrete cells.
00:34Individual thunderstorms that produce two things, hail and oftentimes tornadoes.
00:40Here's why they can be tornadic.
00:42Because they tend to have directional wind shear associated with them.
00:46That's the changing wind direction with height that causes the thunderstorm to rotate and then produces tornadoes.
00:54Then notice, Friday afternoon into Friday night, the severe weather becomes much more widespread.
01:00But the signature changes.
01:02Now it's one long line, what we call a linear signature.
01:08Linear thunderstorms tend to produce what?
01:12Flooding rain, tornadoes as well.
01:15You can see those individual red dots within that line.
01:18But they also produce damaging winds.
01:20Here's why.
01:21Typically with a linear signature, you get the same wind direction with height.
01:29So the thunderstorms tend not to rotate, but they produce damaging winds.
01:35And when you look at the severe weather threat on Friday, it covers a very large area.
01:41From Minnesota all the way down into Texas, but we're zoning in on that high risk.
01:47The east side of the grain will be floating on there.
01:47But unlike the coast, when you last time werakt storing it, the wind securing it, the wind and nozzle annual
01:47winds.
01:47Thatket Earth wanna too, of course, it costs free avoid rainstorm.
01:47Thank you very well.
01:47Go ahead and go ahead and get a bit of it.
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