Re: Could any of you please explain to me High pressure and Low Pressure impacts in hurricane tracki
Posted by Cape_Fear_NC on 8/19/2009, 10:56 am
Good question but the answer unfortunately is far from easy.

When looking down at the earth from space as your satellite loop is doing, you're seeing the atmosphere from the top down and must conceptualize it in 3 dimensions.

There are "Highs" and "Lows" in the atmosphere at different levels, not just at the surface. For example, surface lows are typically rain storms but upper level lows may pass over you without you noticing anything. Point being - those loops ARE really as complex as they look, lol.

But to answer your question as simply as possible; any air mass you see, regardless of size, that's rotating clockwise can be considered a High Pressure area - and vice-versa. Highs can have clouds; typically for two reasons - cumulus from daytime heating; and cirrus streaming overhead from neighboring Lows.

Hope that helps,

Tim in NC
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Could any of you please explain to me High pressure and Low Pressure impacts in hurricane tracking? - AugustineGirl, 8/19/2009, 9:41 am
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