Hurricane Ingredients: 1. 2. 3. 4. 5. Convection currents Warm, moist air Cool dense air Warm ocean water Winds blowing the same speeds and direction Directions: 1. 2. 3. 4. Warm ocean water evaporates making warm, humid air Winds blow from each side at the same speed forcing air up into the atmosphere Higher cooler air flows outward above the storm, allowing it to rise The Corriolis force & convection currents cause the spinning of the air Tornado Ingredients: 1. Warm, moist air 2. High layer of cool air 3. Dark cloud 1. 2. 3. 4. 5. Directions: Intense heat sends warm, moist air upwards from the ground The warm air meets & punches through a higher layer of cooler air A storm front forms, often with a thick, dark cloud Winds from different directions cause the storm to rotate A funnel drops from the cloud to the ground Thunderstorms: Ingredients: 1. 2. 3. 4. 1. 2. 3. 4. 5. Cold front Moisture Unstable, warm air Cumulonimbus clouds Directions: Warm air from Earth’s surface rises transferring heat to the atmosphere Water vapor cools and condenses forming a cloud The cloud rises to freezing temperatures The ice particles colliding cause an electrical charge that build up into lightning Updraft continues to feed the storm, but downdraft causes precipitation 6. Downdraft and rain-cooled air spread out along the ground forming a gust front