What do the weatherpeople mean when they say: "The barometric pressure is falling/rising?"
Thanks!
2006-08-02 15:30:00 · 8 answers · asked by Celes Chere 4 in Science & Mathematics ➔ Weather
It refers to atmospheric pressure, measured in inches or millibars. This refers to a barometer showing readings, similar to a thermometer, but of pressure, not temperature, with mercury in a tube that rises and falls accordingly. The air surrounding us is constantly moving and heating unproportionately. When the air pressure rises, it means that the air mass surrounding you is stable and nice weather is assured due to the rising air causing the higher pressure. When the barometer falls, it means the air mass surrounding you is unstable and due to less pressure, the air is sinking, and results in the moisture within the air condensing into storms and rain.
2006-08-02 20:16:41 · answer #1 · answered by Anonymous · 2⤊ 0⤋
Barometric pressure also called atmospheric pressure, that is the force of a column of air exerted directly above a certain area. When the meteorologist say the barometric pressure is falling or rising it actually mean the pressure above you is falling or rising.
2006-08-02 22:55:29 · answer #2 · answered by cg 1 · 0⤊ 0⤋
Barometric pressure is a standard measurement of fair or stormy weather. It is a very good aid in forecasting.
2006-08-02 22:35:52 · answer #3 · answered by Anonymous · 0⤊ 0⤋
The pressure of air compared to the high or low pressure system affecting the area being measured.
2006-08-02 22:37:22 · answer #4 · answered by ostrom57 4 · 0⤊ 0⤋
Falling pressure usually means that a storm is coming.
2006-08-02 22:35:06 · answer #5 · answered by RyanSmith 3 · 0⤊ 0⤋
Air pressure, atmospheric pressure. Low means rain, high means clear.
2006-08-02 22:33:43 · answer #6 · answered by helixburger 6 · 0⤊ 0⤋
if barometer reading is rising, there is less humidity, good weather.
if it is falling, it means there it very humid, low pressure, thus more chances of rainfall
2006-08-02 22:34:28 · answer #7 · answered by Ma-Mon 2 · 0⤊ 0⤋
it is mainly for pilots...they need to know it because it affects their instruments altitude readout...If they have the wrong one, their altitude could be WAY off...and that would not be good.
2006-08-02 22:34:13 · answer #8 · answered by Anonymous · 0⤊ 0⤋