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An air mass
that forms
over an ocean
is called?
A maritime air
mass
What are lines
joining places
that have the
same
temperature?
isotherms
Cool, clear
weather usually
follows a _________
front.
Cold Front
________________is a
sudden spark or
electrical discharge, as
electrical charges that
jump between parts of
a cloud or between a
cloud and the ground.
Lightning
On a weather
map,________________
join places on the
map with the same
air pressure.
isobars
If you observe air
pressure
decreasing, what
kind of weather do
you think is
coming?
Clouds and
precipitation
A thermometer
measures
Air
Temperature
In Fahrenheit
the freezing
point of water
is….
32 degrees
Fahrenheit
In Celsius the
boiling point of
water is …
100 degrees
Celsius
How are air
masses
classified?
By Temperature
and Humidity
A rapidly moving cold air
mass meets a slowly moving
warm air mass and forms a
front. What will most likely
occur at this front?
Cold air will slide under
the warm air. Warm air
will rise and cool and
clouds will form.
What is the
main way the
troposphere is
heated?
Convection
Currents
What are the
three major
global wind
belts?
Trade Winds,
Polar Easterlies
and the
Prevailing
Westerlies
The two areas
of calm are
The Doldrums
and the Horse
Latitudes
The instrument
used to measure
wind speed is
called a
Anemometer
A scientist who
studies the
causes of
weather and
tries to predict
weather is
called a ______?
Meteorologist
Bands of high
speed winds
above the Earth’s
surface are
called__________?
Jet Streams
The increased
cooling that a
wind can
cause is called
The Wind Chill
Factor
What is the
natural process
where gases hold
heat in the air
called?
The Greenhouse
Effect
What is an air mass?
A large body of air
that has similar
temperature, humidity
and air pressure
throughout.
Name 4 types of
fronts?
A. Warm
B. Cold
C. Stationary
D. Occluded
How are air masses
moved in the US?
A. Jet Streams
B. Prevailing Westerlies
A polar air mass has
_____________pressure?
High
The boiling
point of water
in Fahrenheit
is …
212 degrees
fahrenheit
A cold air mass and a warm
air mass meet and remain
stalled over an area is a
____________________front.
Stationary Front
What causes winds?
Differences in air
temperature and
pressure caused by
the uneven heating
of the Earth’s
surface
When a warm air mass
slides over a cold air
mass a _________front
is formed.
Warm Front
When a warm air
mass is caught
between two cooler
air masses a(n)
_________ front is
formed.
Occluded Front
Winds that are
found between
0 and 30
degrees
latitude are
called
Trade Winds
I am a front that
brings light rain
for several days.
____________
Warm or
Stationary
Winds that are
found between
30 and 60
degrees
latitude are
called
The Prevailing
Westerlies
I am a front that
brings severe
weather. (Heavy
downpours, gusty
winds and cooler
temperatures)
Cold Front or
Occluded Front
Name this front?
Name this front?
Name this front?
Name this front?
Name this front?
Lower pressure usually
means clouds, rain, or
snow.
Higher pressure usually
means nice, clear weather.