Name ______________________________ Date _______________ Block _______
Severe Weather Web Quest
TORNADOES
Click on the website: http://environment.nationalgeographic.com/environment/natural-disasters/forces-of-nature/
Once you get to this site, click on the “Tornadoes” icon. Be sure the number “1” is dark gray then read the information in the gray box about tornadoes.
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What is a tornado? ____________________________________________________________________
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Which state has the most twisters per year? _________________How many occur per year? ________
Click on the #2. Read the information in the gray box, and answer the following questions.
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What are supercells? __________________________________________________________________
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Where do most tornadoes in America occur? _______________________________________________
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Why do most tornadoes occur in the late afternoon? ________________________________________
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Click on the “Next” button to zoom in to see a tornado.
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When do tornadoes form? ______________________________________________________________
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What is an updraft? ___________________________________________________________________
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Why would it start to rotate? ____________________________________________________________
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Before the storm turns into a tornado, what type of cloud does it become? ______________________
Click on #3. Read the information in the gray box and answer the following questions.
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What kind of weather accompanies tornadoes? _____________________________________________
Click “See Tornado Damage” at the bottom.
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How does the Fujita scale measure tornado intensity? _______________________________________
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Move around the Fujita scale to see the effects tornadoes of different intensities have.
Click on the #4 to see a video of a tornado passing.
Click on the #5 and read the information in the gray box to answer the following:
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What is the difference between a tornado watch and a tornado warning? ________________________
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Click on #6 to create a tornado. Read the instructions at the top. You can keep trying until you form an F5.
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What conditions are perfect for making a tornado?
Air Mass 1 needs to be ______________________. Air Mass 2 needs to be ______________________.
Pressure needs to be ________________________. Winds need to be __________________________.
HURRICANES – Click on the Hurricane Symbol at the top of the window.
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How many mph must winds be going in order for a tropical storm to be a hurricane? ______________
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Where do hurricanes form? ____________________________________________________________
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Where do cyclones form? ______________________________________________________________
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Where do typhoons form? _____________________________________________________________
Click on #2, and read the information. Click the “next” button when you are done.
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Does the eye of the hurricane have HIGH or LOW pressure? _________________________________
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Where are the most violent winds in the hurricane? _________________________________________
Click on the #3.
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In the northern hemisphere, hurricanes always turn how? ____________________________________
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In the southern hemisphere, they always turn how? _________________________________________
Play with the image of the hurricane to see a 3-D image.
Click on the #4.
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All of the rain from hurricanes can cause what to occur? _____________________________________
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What is a storm surge? _________________________________________________________________
Click on the #5. Read the information, and watch the video.
Click on the #6.
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What is the difference between a hurricane watch and a hurricane warning? ____________________
____________________________________________________________________________________
Click on the #7, read the instructions to create a Hurricane.
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Create a hurricane at each location by tweaking the factors and record the following information:
Location 1- Intensity at landfall: ________ Top Speeds: _______________ Danger: ______________________
Location 2- Intensity at landfall: ________ Top Speeds: _______________ Danger: ______________________
Location 3- Intensity at landfall: ________ Top Speeds: _______________ Danger: ______________________
Location 4- Intensity at landfall: ________ Top Speeds: _______________ Danger: ______________________
Location 5- Intensity at landfall: ________ Top Speeds: _______________ Danger: ______________________
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What factors do you need to create a hurricane? Ocean Temperatures need to be ________________.
Humidity needs to be _______________. Air Pressure needs to be ________________.
THUNDERSTORMS - Go to http://www.srh.noaa.gov/jetstream/tstorms/ingredient.htm
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List the 3 ingredients necessary for a thunderstorm.
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Where are the two moisture sources for thunderstorms in the Southeastern United States?
_____________________________________________________________________________________
At the bottom of the page, Click Next to “Life cycle of a Thunderstorm”.
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The thunderstorm cell has a distinct life-cycle that lasts about __________ minutes
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List the three stages of a thunderstorm.
a) ________________________ b) ________________________ c) ________________________
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Which is the most dangerous stage when hail, tornadoes, damaging winds and flash flooding may occur?
_____________________________________________________________________________________
At the bottom of the page, Click Next to “Types of Thunderstorms”
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What is a squall line? _________________________________________________________________
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What type of thunderstorms are responsible for nearly all of the significant tornadoes in the U.S.?
____________________________________________________________________________________
Click on Next to “Thunderstorm Hazards – Hail”
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Which states have the most hail storms? ___________________________________________________
Click on Next to “Thunderstorm Hazards – Damaging Wind”
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What is a derecho? _____________________________________________________________________
Click on Next to “Thunderstorm Hazards – Tornados”
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In a typical year, how many tornadoes will strike the US? _______________________________________
At the bottom of the page, watch the short video of the train meeting the tornado.
Click on Next to “Thunderstorm Hazards –Flash Floods”
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What is common the saying you should remember when coming upon a flooded roadway?
_____________________________________________________________________________________
BLIZZARDS - Go to http://www.ussartf.org/blizzards.htm
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How does the National Weather Service define a blizzard? ____________________________________
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The amount of cooling one “feels” due to the combination of wind and temperature is the ___________
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List four dangers of blizzards: __________________________________________________________
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What do we call a blizzard that moves up the east coast from the Mid-Atlantic to New England?
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Read about how to stay safe in your home or vehicle during a winter storm.
Scroll down to “Keep Ahead of the Storm”
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What does it mean if each of the following is issued?
Winter Storm Watch - _________________________________________________________________
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Winter Storm Warning - ________________________________________________________________
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