TROPICAL STORMS

TITLE: TROPICAL STORMS LOCATION AND FORMATION Date: 24/06/2016 Lesson aims: By the end of the lesson you should know: Where tropical storms are found in the world. The conditions that are needed for a tropical storm to form. The structure of a tropical storm.

TROPICAL STORMS MIND MAP You have 3 minutes to come up with a definition of a tropical storm. Be ready to feedback to the class (write your answer down)

TROPICAL STORM Definition: A localized, very intense low-pressure wind system, forming over tropical oceans and with winds of hurricane force.

TASK: Take the sub heading : Location and movement of tropical storms. Q) Where in the world do you get tropical storms? Do you get them everywhere? Is it only certain places? Do you hear about tropical storms all year?

TASK: LOOK AT THE MAP BELOW. WHAT DOES IT TELL YOU ABOUT THE LOCATION OF TROPICAL STORMS? (DISCUSS 2 MINUTES)

LOCATION OF TROPICAL STORMS. Tropical storms are found between the Tropic of Cancer in the Northern hemisphere and the Tropic of Capricorn in the South. They originate over the eastern side of oceans and move westwards where they cross the land causing great devastation before dying out. Tropical storms over 74mph are called hurricanes in the West, cyclones in the East and typhoons in China and Japan.

MOVEMENT OF TROPICAL STORMS Tropical storms usually move from the SE to the NW. In the Northern hemisphere. Tropical storms will therefore cross the tropic of Cancer. Many head towards the SE of the USA and the North of South America and the Caribbean. Much of SE Asia can also be affected by tropical storms.

Do you notice any other pattern in the location of tropical storms?

The majority of the tropical storms affect countries that are developing. This means that the threat that they pose is far greater because developing countries have less money for technology to predict, manage and respond to natural hazards.

FORMATION OF TROPICAL STORMS. Q) Does anyone know how or why tropical storms are formed? clips/the-formation-of-a-tropical- storm-hurricane-mitch-october- 1998/6684.html clips/the-formation-of-a-tropical- storm-hurricane-mitch-october- 1998/6684.html

FORMATION OF TROPICAL STORMS. In order for a tropical storm to form the following conditions need to be met: Sea temperatures must be over 27°C Low air pressure Air spiralling upwards Large expanse of water Location between the tropics Damp, moist air with humidity greater than 60%

ATLANTIC HURRICANE SEASON th August Hurricane season is quiet BBC Weather - Atlantic hurricane season update 15 th of August – storm Erin developing BBC Weather - Tropical Storm Erin develops in the Atlantic

CASE STUDY: HURRICANE KATRINA. YOU MUST KNOW: the underlying causes the impact on the landscape and population methods of prediction and their effectiveness role of aid agencies and their effectiveness

Hurricanes