2007-07-31 04:44:35 · 4 answers · asked by NiCOLE :0) 1 in Science & Mathematics ➔ Weather
Low pressure is a forced lifting mechanism which allows for precipitation. This is because air moves towards the center of low pressure and converges which forces the air upwards.
Look here to see a map of forced lift for the United States.
http://weather.unisys.com/nam/init/nam_700_init.html
2007-07-31 04:48:23 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Whenever low pressure is there, winds from the sorrounding area converge at the centre of the low pressure system and are forced to rise leading to condensation of water vapour and thereby producing precipitation.Enough moisture should be available in the rising air for this condensation to occur.Low pressure invariably produces precipitation whereas precipitation does not lead to formation of low pressure.
2007-07-31 13:57:39 · answer #2 · answered by Arasan 7 · 0⤊ 0⤋
Amplifying on an answer you have already received...
Wherever low pressure regions are located there is an incoming movement of air from adjacent regions of higher pressure. This forces up the air near the center of the Low. As the air rises, it cools and its water vapor condenses to form clouds and precipitation. There is a reverse phenomena near Highs, where air moves outward into areas of lower pressure, drawing down cooler drier air in the process.
2007-07-31 12:01:41 · answer #3 · answered by anobium625 6 · 0⤊ 0⤋
sort of like the relationship between peanut butter and chocolate.
2007-07-31 11:51:42 · answer #4 · answered by itssoeasy 6 · 0⤊ 0⤋