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  • 11 minutes ago
Extreme meteorologist Dr. Reed Timmer uses an organizing straight line wind event in North Dakota to explain the significance of inflow notches, mesocyclones and more in regards to the risks they can pose.
Transcript
00:00We are tracking and organizing windbag, our massive straight-line wind event here across northern North Dakota,
00:06and we are looking for these little inflow notches right along the shelf cloud boundary,
00:11and even little mesocyclones here.
00:13You can see the spin happening right on the front side there.
00:16When this line hits that deeper moisture, when those dew points get up into the upper 60s,
00:21features like this will have the potential of becoming QLCS tornadoes, which can be damaging as well.
00:27You just got to look for these little inflow notches that carve into the gust front.
00:32This is a quasi-linear convective system that's organizing possible derecho eventually,
00:37depending on how organized and long-lived this event can get.
00:40But we could easily see winds, straight-line winds in excess of 80 miles an hour with this squall line,
00:46and we might even have embedded tornadoes as well.
00:49If these inflow notches can carve in deep behind the gust front, that's when we could get some QLCS tornadoes.
00:55But that happens when you have these updrafts sharing a common gust front,
00:59and this is going to steamroll east, and there is plenty of ambient shear and moisture out ahead of this
01:04line.
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