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WorksheetsSevere Weather
Total questions: 18
Worksheet time: 9mins
What is a tornado?
a violently rotating column of air
a rotating tropical storm
a winter storm characterized by high winds and snow
a storm that occurs in cumulonimbus clouds
Which state has the most twisters per year? How many?
Texas, 120
Oklahoma, 120
Texas, 1000
Kansas, 500
What are large thunderstorms that have winds already in rotation called?
supercells
blizzards
hurricanes
tornadoes
Why do most tornadoes occur in the afternoon?
the sun has had more time to heat the ground/atmosphere & produce thunderstorms
the winds need a few hours to build up before they can become a tornado
there aren't any clouds in the morning to form tornadoes
the ground has had time to cool off and produce ideal conditions for tornadoes
When do tornadoes form?
when warm, humid air collides with cold, dry air
when cold, humid air collides with warm, dry air
when cold air rises through warm air
when the air cools rapidly and forms storm clouds
What is a funnel cloud?
the cloud that forms before a storm turns into a tornado
another name for a tornado
a rotating updraft
when warm air rises through cold air
How does the Fujita scale measure a tornado's intensity?
by analyzing the damage the tornado has done & matching that to wind speeds
by only looking at the wind speed
by looking at the number of buildings the tornado destroys
by analyzing the wind speeds and width of the tornado
Which level on the Fujita scale corresponds to incredible damage and wind speeds of 261 mph?
F5
F1
F3
F2
What is the difference between a tornado watch and a tornado warning?
A watch is when a tornado has been sighted & a warning is when the weather is conducive to a tornado
A warning is when a tornado has been sighted & a watch is when the weather is conducive to a tornado
They are both the same thing
A watch is when there is a tornado is within 5 miles, & a warning is when there is a tornado within 1 mile
What are the perfect atmospheric conditions for a tornado?
When a cold/dry air mass and a warm/moist air mass meet in addition to falling pressure & variable winds.
When a cold/moist air mass and a warm/dry air mass meet in addition to falling pressure & variable winds.
When a cold/dry air mass and a warm/moist air mass meet in addition to rising pressure & steady winds.
When a cold/moist air mass and a warm/moist air mass meet in addition to rising pressure & variable winds.
What speed must the winds be in order for a tropical storm to be a hurricane?
74 mph
119 mph
47 mph
39 mph
Do the center of hurricanes have high or low pressure?
high
low
Where are a hurricanes most violent winds?
Eye wall
Feeder bands
left side
right side
Which direction do hurricanes turn in the Northern Hemisphere?
clockwise
counterclockwise
What are usually the most dangerous part of a hurricane?
storm surge
floods
landslides
wind
What atmospheric conditions are necessary to form hurricanes?
warm water, high humidity, and low pressure
cool water, high humidity, and low pressure
cool water, low humidity, and high pressure
warm water, low humidity, and low pressure
What are the 3 ingredients necessary for a thunderstorm?
moisture, instability, & a lifting mechanism
dry air, high pressure, & a lifting mechanism
moisture, instability, & cool air
moist cool air, high pressure, and differential heating
What is the mature cumulus stage of a thunderstorm?
Strong updrafts & downdrafts coexist
Air within the cloud is dominated by updraft
The downdraft cuts off the updraft and the storm no longer has a supply of warm moist air
When cloud height reaches up to 20,000 feet
