the power of change - winds...
A hurricane is a huge storm! It can be up to 600 miles across and have strong winds spiraling inward and upward at speeds of 75 to 200 mph. Each hurricane usually lasts for over a week, moving 10-20 miles per hour over the open ocean. Hurricanes gather heat and energy through contact with warm ocean waters. Evaporation from the seawater increases their power.
Hunting for tornado...
A tornado is a rapidly spinning tube of air that touches both the ground and a cloud above.
Tornadoes are sometimes called twisters.
Not all tornadoes are visible but their high wind speeds and rapid rotation often form a visible funnel of condensed water.
The Fujita Scale is a common way of measuring the strength of tornadoes. The scale ranges from F0 tornadoes that cause minimal damage through to F5 tornadoes which cause massive damage.
Most tornadoes have wind speeds less than 100 miles per hour (161 kilometres per hour).
Extreme tornadoes can reach wind speeds of over 300 miles per hour (483 kilometres per hour).
Most tornadoes travel a few miles before exhausting themselves.
Extreme tornadoes can travel much further, sometimes over 100 miles (161kilometres).