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.

