00:00You've probably experienced it many times, that sudden blast of cool wind before a thunderstorm.
00:06That's not just a random breeze, you're experiencing a gust front.
00:09To understand what drives this wind, we need to step back and consider what forms and sustains a thunderstorm.
00:14A powerful updraft, warm, humid air rises rapidly into the storm,
00:20fueling towering clouds, heavy rain, lightning, and sometimes hail.
00:24But while air is rising in one part of the storm, another process is crashing downward.
00:28Rapid cooling associated with heavy rain and sometimes hail drives powerful winds toward the ground in the downdraft.
00:34When that air slams into the surface, it spreads outward.
00:37That surge of rain-cooled air races ahead of the storm, like a miniature cold front.
00:42Meteorologists call this a gust front.
00:44As it plows into warm, humid air ahead of the storm, it forces that air upward,
00:47and that lift can spark brand-new thunderstorms downstream.
00:51So one thunderstorm can actually help create the next one,
00:54turning a single storm into a growing chain of severe weather.
00:58With it to close to the storm, you can question discourage the ground-new thunderstorms içerisally in the Him.
00:58But for, in the weather we consumer,
00:58So all this weather changes where we will니까 we go!
00:58In terms of heat to release and weather, I think it has a gust curve.
00:58We are hoping that we're doing everything του it...
00:58And in weather speed, first, can we hear how much weather Professor
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