chapter15_post

chapter15_post - How hurricanes work add this to your notes...

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How hurricanes work – add this to your notes from Chapter 14. Heat builds up in the air over warm parts of the ocean Warm, moist air rapidly rises creates areas of low pressure This initiates horizontal air movement, because air moves from high pressure areas to low pressure areas But then air quickly starts to rotate, because of Coriolis effect As rotating air rises, the moisture condenses releases heat Air continues to be warmed, by released heat. Thus it continues to rise and rotate storm gets larger This continues as long as there is a source of warm, moist air
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Chapter 15 – Thunderstorms and Tornadoes How Thunderstorms Work Severe Thunderstorms How Tornadoes Develop (2 ways) 1. From mesocyclone in thunderstorm 2. Updraft from thunderstorm pulls horizontal rolling vortex to vertical position How do tornadoes differ from hurricanes? Tornado damages and safety Other hazards related to thunderstorms: – Lightning – Hail
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How Thunderstorms Work Two elements must be present for thunderstorm development: 1. Warm air 2. Moisture • Thunderstorm formation begins when warm, moist air begins to uplift. Warm, moist air is uplifted by one of 3 mechanisms: 1. Cold air pushing under warm air along cold front (most common) 2. Localized afternoon ground heating—hot air rises 3. Warm air pushed up a mountain side
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How Thunderstorms Work • Warm and moist air rapidly rises into colder air and water vapor condenses, releasing heat • The air continues to be warmed, by released heat. Thus it continues rising (the ― updraft ‖), and carries condensed micro-droplets of water up.
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chapter15_post - How hurricanes work add this to your notes...

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