<u>A large-scale system of winds that spiral in toward a region of low atmospheric pressure. A cyclone's rotational direction is opposite to that of an anticyclone. In the Northern hemisphere, a cyclone rotates counterclockwise; in the Southern hemisphere, clockwise.</u>
Cyclone, any large system of winds that circulates about a centre of low atmospheric pressure in a counterclockwise direction north of the Equator and in a clockwise direction to the south. Cyclonic winds move across nearly all regions of the Earth except the equatorial belt and are generally associated with rain or snow.
As the other answers here describe, the Fugitive Slave Law of 1850 meant that there was nowhere safe for an escaped slave anywhere in the United States. That is why Harriet Tubman had to take her runaway slaves all the way to St. Catherines in Canada. ... When this happened, Canada became a safe refuge for escaped slaves.
