Buys Ballot's Law

bullet In north latitudes, face the wind and the barometer will be lowest to your right.
bullet In south latitudes, face the wind and the barometer will be lowest to your left.

 

Explanation:

bullet Wind flows almost parallel to isobars, cutting them at small angle.
bullet Wind always blows from high pressure to low pressure.
bullet This phenomenon is simplified in Buys Ballot's Law.
bullet Using this principle, the position of a law may be determined.

 

 

Updated: June 18, 2003