The Law of Storms / The various phenomena by which their approach can be ascertained with certainty, and practical directions to mariners for the avoidance of their fury, compiled from various sources

by John Ross

Bodies of air set in motion from a state of rest, turn the wind-vane in the direction of the meridian as follows:

The Polar current in the Northern Hemisphere from N. to E.

The Polar current in the Southern Hemisphere from S. to E.

The Equatorial current in the Northern Hemisphere from S. to W.

The Equatorial current in the Southern Hemisphere from N. to W.

In general the winds in the Northern Hemisphere are as follows:

Those from N. to E. the Polar currents.

Those from E. to S. the transition of the Polar to the Equatorial.

Those from S. to W. the Equatorial current.

Those from W. to N. the transition of the Equatorial to the Polar.