HURRICANES vs. TORNADOES! Objective: Describe and analyze the formation of severe weather.

Science Starter What would you do if you were told that there was a chance that the place where you live 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? 2. Think Back: What type of air pressure system is associated with high precipitation and stormy weather?

Agenda Warm Up & Objective Announcements Hurricane Katrina, 5 years later Tornado & Hurricane Search TORNADO & HURRICANE VIDEO CLIPS Venn Diagram Exit Ticket

Objective SWBAT describe and analyze the factors leading up to the development of severe cyclonic systems

Reminders Tutoring Tues/Thurs 2:30-4:30pm Unit 5 Test: Next Tuesday Not available this week (meetings) Unit 5 Test: Next Tuesday

From Monday… Take out notes & HW from Monday Use this time to fill out the remaining boxes in the fronts notes Any group want to present on their front type? Warm, Cold, Stationary, Occluded

Warm Fronts Warm air mass meets and rises above cold air mass Associated with slow and steady rain, followed by hot, humid weather gentle slope

Cold Fronts Cold air masses overtake and pushes under warm air mass forms faster Heavy rains and violent thunderstorms, followed by fair, cool weather Steeper slope

Stationary Fronts Front does not move b/c air flows parallel to front line Gentle to moderate precipitation

Occluded Fronts Cold fronts move faster than warm fronts they can catch up to and overtake a warm front, wedging the warm air upward Complex; Heavy rains followed by light precipitation for several days

HURRICANE KATRINA… 5 years later http://projects.usatoday.com/news/katrina/#/prologue/the-storm/the-storm

On the top part of the “X” is a date, which is when the house was checked. To the left is the unit that conducted the search (volunteer unites from other states came in) To the right are state abbreviations for contaminations within the house On the bottom part of the “X” is a number which marks how many people they found dead inside Read more: http://www.igougo.com/story-s1334986-New_Orleans-Hurricane_Katrina_Tour.html#ixzz17H14fOVE

Hurricane and Tornado Search Textbook page. 573-577 Quietly in your seat, take 15 minutes to complete your graphic organizer As you go, consider similarities and differences between the 2 storms

Tornadoes Hurricanes 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

What is a Tornado?

How Do Tornadoes Develop? Warm, humid air collides with cold, dry air The warm air rises up through the cold air creating an updraft If this updraft begins spinning, it can turn into a tornado

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

Tornado in Joplin, Missouri May 2011

STORM CHASERS VIDEO http://www.youtube.com/watch?v=65Su8wpmFu8 Why was this tornado in Joplin so destructive? What damage resulted from this cyclonic storm? What intensity rating did this tornado receive? Any Future storm chasers in the crowd!?!

CFU What causes the most damage during a tornado? What is the primary factor responsible for a tornado touching down?

Hurricane

Damage Caused by Hurricanes Most from storm surge and flooding!!

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.

Raging Planet: Hurricanes 10:35-17:48 http://www.dailymotion.com/video/xa95p7_raging-planet-tornado-2009-part-1_tech?ralg=thefilter#from=playrelon Answer the questions and fill in the blanks on the worksheet provided while you watch

CFU What produces the most damage during a hurricane? How is a hurricane formed? What gives a hurricane its energy? What happens when a hurricane hits land?

Comparing & Contrasting Cyclonic Systems 5 minutes With your group, 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

Venn Diagram: Hurricanes vs. Tornadoes

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

Hurricane Katrina Damage

Exit Ticket __1. What type of air pressure system is associated with hurricanes and tornadoes? a. high pressure systems b. low pressure systems __2. What is the intensity ranking scale for hurricanes? a. Fujita Scale c. Saffir-Simpson Scale b. Cyclone Scale d. Wind speed Scale __3. Explain at least one key difference between tornadoes and hurricanes? __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 speeds c. Heavy rainfall and storm surges b. Collapsing buildings d. The trembling ground