Formation
A large thunderstorm occurs in this type of cloud.
Cumulonimbus
Tornadoes usually look like narrow _________.
funnels
A ____________ usually forms over water.
Waterspout
The lowest category of a tornado.
EF-0
What does a tornado watch mean?
Conditions are good for a tornado to occur.
When does a funnel cloud become a tornado?
When is touches the ground.
Average tornado size is 500 feet across? True or False
True
Gustnado
Wind speeds 136-165 mph fall into what category?
EF-3
Where do the most tornadoes on earth occur each year?
U.S.A.
A change in wind direction and wind speed at high
altitudes causes the air to swirl _______________.
horizontally
Tornadoes are all the same color. True or False?
False
When two tornadoes come together.
Multiple Vortex
The fastest winds on earth occur where?
Inside Tornado
Where is the best location to seek shelter during a tornado?
Basement or storm shelter.
The funnel cloud begins to suck up ______ air from the ground.
Warm
Tornadoes rotate ______________ in northern hemisphere.
Counter Clockwise
Produce the largest tornadoes.
Supercell
What is the difference between hurricane and tornado categories ?
Hurricane has 5 and Tornadoes have 6.
What is a tornado warning?
Tornado is happening and you need to seek shelter.
Average number of tornadoes that form in Canada each year? (closest without going over).
60
Tornadoes can have winds as high as 300 mph. True or False?
True
Similar to waterspout, but forms on land.
Landspout
What does EF scale stand for?
Enhanced Fujita
The majority of tornadoes in the US occur in an area called ______________.
Tornado Alley