In reply to  Craig Haynie's message of Tue, 27 Sep 2005 18:37:32
-0500:
Hi,
[snip]

Which is all very nice, but still doesn't address my initial
question:

Why are *high* pressure areas warm, and *low* pressure areas cold?
(If low pressure regions are caused by rising *warm* air, then
they shouldn't be *cold*, they should be warm).


>It's a bit different than that. Cold air drifts outward from the pole and
>settles downward as cold, dry, air, pushing outward. Warm, moist, air is
>pushed upward ahead of the advancing cold air. As the air rises, it
>condenses, which releases heat, and pulls the air up even farther, creating
>a low pressure area along the frontal boundary.
>
>Additionally, when the cold air pushes toward the jet-stream, such low
>pressure at the frontal boundary can be exagerated by the low pressure
>above, from the jet stream, creating a low pressure center which will follow
>the jet stream, trailing a cold front and a warm front outward from it.
>
>Craig Haynie (Houston)
>
Regards,

Robin van Spaandonk

In a town full of candlestick makers, 
everyone lives in the light,
In a town full of thieves, 
there is only one candle, 
and everyone lives in the night.

Reply via email to