1. Warm Up 1. If you were told that there was a chance that your home would be destroyed by a large storm (but you’ve been told this before). Would you evacuate and leave your life behind you, or take the risk and stay?  EXPLAIN in at least 2 sentences 2. Think Back: What type of air pressure system is associated with high precipitation and stormy weather?

3. Agenda Objective Tuscaloosa, AL tornado Hurricane Katrina Hurricane/Tornado search STORM CHASERS RAGING PLANET Video 3 rd block- PHOTOS for student of week Raffle Exit Ticket Objective: Describe the formation of severe weather.

4. Tuscaloosa, AL Tornado http://www.youtube.com/watch?v=5ohIVzIZLuQ April 27, 2011

6. Hurricane Katrina Damage

8. HURRICANE KATRINA… 7 years later http://projects.usatoday.com/news/katrina/#/prologu e/the-storm/the-storm http://projects.usatoday.com/news/katrina/#/prologu e/the-storm/the-storm

10. Hurricane and Tornado SEARCH Textbook page. 573-577- everything can be found within these pages. As you go, consider similarities and differences between the 2 storms

11. CYCLONIC SYSTEM What is it? How does the storm develop? How often does this storm occur? What is the intensity ranking? Associated with High or Low Pressure? Tornadoes Hurricanes

12. Comparing & Contrasting Cyclonic Systems5 minutes With your table partner, complete a VENN DIAGRAM on hurricanes vs. tornadoes  Each group will be responsible for coming up and writing one thing for the class consensus Venn Diagram on the board  at least 2 points comparing the two systems  at least 4 points on their differences. Consider: - speed- greatest damage - location of formation- time of formation/ predictability

13. HurricanesTornadoes

14. Comparing and Contrasting Tornadoes and Hurricanes Hurricanes * Form over warm water * Greatest damage comes from storm surges and flooding * Lose speed over land * Predictable * Big, but slow Tornadoes * Form over land usually * Greatest damage comes from winds * Sometimes only last seconds * Very unpredictable and fast Spinning systems of low pressure High speed winds

15. What is a Tornado?

16. How Do Tornadoes Form? Warm, humid air collides with cold, dry air The warm air rises up through the cold air creating an updraft because of a LOW PRESSURE SYSTEM If this updraft begins spinning, it can turn into a tornado

17. Damage Caused by Tornadoes Extremely high winds can tear buildings apart, slip cars, and even suck the water out of a riverbed

18. Wait…how exactly does it form? http://news.bbc.co.uk/2/hi/science/nature/7533941.st m http://news.bbc.co.uk/2/hi/science/nature/7533941.st m Animation

19. STORM CHASERS VIDEO 2 storm chasers tell their story about getting caught in a tornado http://www.youtube.com/watch?v=06YyI7crOy0 Any Future storm chasers in the crowd!?!

20. Check point #1 1. What type of pressure systems are tornadoes associated with? 2. What causes the most damage during a tornado? 3. What is the intensity ranking for tornadoes?

21. Hurricane

22. Damage Caused by Hurricanes Most from the storm surge and flooding!!

23. FAST FACT The word “hurricane” comes from the Taino Native American word, Hurucane, meaning “evil spirt of the wind.” The first time anyone flew into a hurricane happened in 1943 in the middle of WWII.

24. Wait…how exactly does it form? http://news.bbc.co.uk/2/hi/science/nature/7533909.st m http://news.bbc.co.uk/2/hi/science/nature/7533909.st m

25. Raging Planet: Hurricanes 10:35-19:00 25:46-31:15 Storm Chasers, Take 2! Answer the questions and fill in the blanks on the worksheet provided while you watch

26. Checkpoint #2 1. What produces the most damage during a hurricane? 2. What must be true of ocean temperatures in order for a strong hurricane to form? 3. What is the intensity ranking scale for hurricanes? 4. What happens when a hurricane hits land? 5. What is the eye of the hurricane and what are the winds like IN the eye of the storm?

28. Are you ready?

29. __1. What type of air pressure system is associated with hurricanes and tornadoes? a. high pressure systemsb. low pressure systems __2. What is the intensity ranking scale for hurricanes? a. Fujita Scalec. Saffir-Simpson Scale b. Cyclone Scaled. Wind speed Scale __3. What is a key difference between tornadoes and hurricanes? a. Tornadoes form over land and hurricanes form over water b. Hurricanes are unpredictable and tornadoes are predictable c. Tornadoes greatest damage comes from storm surges and floods and hurricanes greatest damage comes from high wind speeds. d. Hurricanes form from high pressure systems and tornadoes form from low pressure systems __4. What produces the most damage during a hurricane? a. High wind speeds c. Heavy rainfall and storm surges b. Collapsing buildings d. The trembling ground __5. What produces the most damage during a tornado? a. High wind speedsc. Heavy rainfall and storm surges b. Collapsing buildingsd. The trembling ground