How change in atmospheric pressure can be used to foretell the weather?
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•One of the earliest forecasting tools was the use of atmospheric pressure.
•Soon, after the invention of the barometer, it was found that there were natural fluctuations in air pressure even if the barometer was kept at the same elevation.
•During times of stormy weather the barometric pressure would tend to be lower.
•During fair weather, the barometric pressure was higher.
•If the pressure began to lower, that was a sign of approaching inclement weather.
•If the pressure began to rise, that was a sign of tranquil weather.
•There is also a small diurnal variation in pressure caused by the atmospheric tides
•For the most part, you can interpret height falls and rises the same way as surface barometric rises or falls.
•Increment weather is associated with height falls and lowering barometric pressure and fair weather is associated with height rises and rising barometric pressure.
Other tips:
1. Low pressure troughs tend to move toward the region of greatest height falls
2. Ridges build most strongly into regions with the greatest height rises
Hope it helps
;)
•Soon, after the invention of the barometer, it was found that there were natural fluctuations in air pressure even if the barometer was kept at the same elevation.
•During times of stormy weather the barometric pressure would tend to be lower.
•During fair weather, the barometric pressure was higher.
•If the pressure began to lower, that was a sign of approaching inclement weather.
•If the pressure began to rise, that was a sign of tranquil weather.
•There is also a small diurnal variation in pressure caused by the atmospheric tides
•For the most part, you can interpret height falls and rises the same way as surface barometric rises or falls.
•Increment weather is associated with height falls and lowering barometric pressure and fair weather is associated with height rises and rising barometric pressure.
Other tips:
1. Low pressure troughs tend to move toward the region of greatest height falls
2. Ridges build most strongly into regions with the greatest height rises
Hope it helps
;)
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