00:00Saharan dust, the dry, dusty air that prevents tropical development.
00:05Now, the name comes from the origin of the dust, the Saharan desert across northern Africa.
00:11That dust is directed to the west from high pressure that is located east of Bermuda.
00:19In fact, when you look at a water vapor loop in the Atlantic during the early part of the season,
00:24you see the yellow show you the widespread dry air.
00:28It prevents development as tropical waves come off Africa.
00:32You have a small area of showers and thunderstorms.
00:35That's the engine of tropical development.
00:38But that dry, dusty air limits thunderstorm development and weakens the tropical waves.
00:44And even if you would get a hurricane or a tropical storm,
00:48any dusty, dry air that gets involved or entrained in the hurricanes will also weaken it.
00:56Now, the Saharan dust is so widespread in the early part of the season,
01:01you'll notice when you look at the timing of the hurricane season,
01:04you have to wait until the dust dissipates.
01:07And that's usually not until the middle of August.
01:09Be quite interested.
01:10Thank you, Lord.
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