Transcript Ch 12 and 13 review game

Ch 12 and 13 review game
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What is a hydrometeor?
An instrument that measures humidity
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What winds blow between 30 and 60
degrees North and south latitude?
Prevailing Westerlies
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What would be the most likely air mass
from northern Canada?
Continental Polar or Continental Artic
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What would be the most dominant air
mass in the south eastern united states
in the summer?
Maritime Tropical
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What instrument is used to measure the
heights of the bases of clouds?
Ceiliometer
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What is the term for the Earth’s rotation
causing the winds to curve?
Coriolis effect
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What forecast method is best for
researching past weather events?
Analogue
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Name two characteristics of high
pressure?
Clear skies and cooler air
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What information goes on a station
model?
Temp, dew point temp, wind direction,
wind speed, cloud coverage, bar press,
bar trend, visibility, current
precipitation
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What does an anemometer measure?
Wind speed
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What is the difference between weather
and climate?
Weather is a measurement of
atmospheric conditions that is currently
going on and climate
is
the
average
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over the long term.
Which front moves the fastest?
Cold front
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Which front would create
thunderstorms?
Cold front
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Which front would create a long lasting
drizzle followed by warm weather?
Warm front
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Which front would create freezing rain
or sleet?
Occluded front
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Which front would create a flood due to
staying in the same place for a while?
Stationary
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What is an air mass?
A large volume of air that shares its
characteristics with the source region.
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What are the two characteristics of an
air mass?
Temp and humidity
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What is air mass modification?
When an air mass changes after it
travels over a new region.
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What is the jet stream?
A narrow fast moving band of air
within the Prevailing westerlies.
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What do we use to measure air
pressure?
Barometer
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What is the Doppler effect?
As energy is moving towards an
obsever, the wavelengths compress, and
as the energy moves away from an
observer the wavelengths elongate.
On radar, air moving towards tower is
green and air moving away is red.
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What is a radiosonde?
A package of weather equipment used
to measure atmospheric conditions that
is carried up by a balloon.
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What are two types of thunderstorms?
1. Air mass (mountain and sea breeze)
2. Frontal (cold and sometimes warm)
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What are the three stages of development of a
thunderstorm?
1. Cumulus Stage: Updrafts transport moisture
to upper levels.
2. Mature Stage: Strong updrafts and
downdrafts
3. Dissipation Stage: The storm loses energy
because there are only downdrafts
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What is a super cell?
Extremely powerful storms
characterized by intense, rotating
updrafts.
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What temperature does lightning heat
the air up to?
30,000 degrees C
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Explain how thunder is created?
The heat from lightning causes a rapid
expansion of air.
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How many deaths occur each year due
to lightning?
90-95
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What is a downburst?
Violent downdrafts of air (confused
with tornadoes) that can reach up to
160 km/h winds.
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How does hail form?
Ice precipitation that forms from updrafts transporting the
water to upper layers where it freezes, then falls back down
collecting more moisture. If the up drafts are strong enough,
then the water covered ice chunks go back up, freeze the new
water and fall back down. The more this cycle repeats itself,
the larger the hail gets.
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How could you tell how many times
hail traveled up and down in the
clouds?
Count the rings when you cut it in half.
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What happens when the amount of rain
fall exceeds the water sheds ability to
absorb the water?
Flood
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What color can you see in the sky that
might warn you of a possible tornado?
Green
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What is the name of the tornado scale?
Fujita
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What three things is tornado scale
based on?
Wind speed, width, and damage
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What is the name of the geographical
location where most tornadoes in the
US occur?
Tornado Alley
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What direction do tornadoes generally
travel?
East by North East
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How high does the Fujita scale go to?
F-5
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What is a tropical cyclone?
Large rotating low pressure system.
The energy for these storms are
provided by the warm ocean water.
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Describe the air flow of a cyclone in
the northern hemisphere?
Counter clock wise, in and up.
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What is the ITCZ?
The Inter Tropical Convergence Zone
is where air meets in the tropics and
creates wet weather. This band shifts
seasonally.
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What is the “eye” of the storm?
The calm center of the storm where you
can see blue skies.
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What makes the “eye” of the storm
calm?
The air in the center is sinking.
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What is the name of a tropical storm
that reaches wind speeds over 74
Km/hr?
Hurricane
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What is the name of the hurricane
scale?
Saffir Simpson Scale
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What is the source of energy for a
hurricane?
Warm ocean water
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Where do hurricanes that effect the east
coast of the US originate from?
The west coast of Africa
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What is a storm surge?
OCCURS WHEN POWERFUL HURRICANE
FORCE WINDS DRIVE A MOUND OF OCEAN
WATER TOWARD SHORE, WHERE IT WASHES
OVER THE LAND OFTEN CAUSING ENORMOUS
DAMAGE
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What is the most dangerous aspect of a
hurricane?
Flooding
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What happens to a hurricane after it
makes land-fall and why?
It gets weaker because it’s source of
energy is the ocean water.
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What is a lack of moisture in a region
called?
Drought
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What killed a lot of French and Italian
seniors over the summer?
Heat wave
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What is the opposite of a heat wave?
Cold Wave (snap)
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What is the wind chill factor?
What the temp feels like due to the
wind carrying heat away from our
bodies.
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