Which Way To Hurricanes Spin?

Tools

By By Steve Pool

SEATTLE - In the Northern Hemisphere, most cyclonic-based storms -- hurricanes, tornadoes, typhoons, etc. -- spin in the same direction as low pressure systems: counter-clockwise (Although there have been rare occurrences of a tornado spinning clockwise). High pressure systems spin clockwise.

On the other hand, in the Southern Hemisphere, hurricanes and such spin clockwise and high pressure systems go counter-clockwise. That's due to the Coriolis Force -- which is caused by the Earth's rotation. The Earth spins faster at the equator than the poles.

Low pressure is due to areas of rising air, which then start to spin counter-clockwise due to the Coriolis Force. High pressure is tied to sinking air, which the Coriolis Force turns the air clockwise. In tomorrow's column, we'll deal with what happens if a hurricane crosses into the other hemisphere.

Your Photos

YouNews Moonrise taken from Entiat WA. Moonrise taken from Entiat WA.
Moonrise over Orondo WA taken from Entiat WA. I waited a long time for the moon to rise in this area. Shot with a 600mm lens.
YouNews Near Full Moon Jet Near Full Moon Jet
These are various frames from a video taken Wednesday night
of a jet passing in front of the Apogee Moon. An Orion
short tube 80mm telescope and an Imaging Source Video Camera
were used to take these images.
YouNews 8yr Pure Athleticism, Talent and Heart 8yr Pure Athleticism, Talent and Heart
My son Keoni Bananola Lamar is 8yr old. The video is when he was 6yrs. He started doing flips on a trampoline in his grandma back yard when he was 5yr. From the first time he got on the trampoline I knew he was fearless.