Transcript front
Fronts and
Air Masses
Look
at the weather conditions outside.
What type of air mass is over Long Island?
What
Low
type of front is it causing?
pressure/high pressure?
What
facts did you use to answer these
questions? (Ex: I looked outside and
noticed….)
Today’s Weather Map
A Body of air that has the same
temperature, humidity, and pressure is
known as a(n)
Air
mass
What are the characteristics of a
high pressure system?
Clear,
cool, dry
What are the characteristics of a
low pressure system?
Warm,
cloudy
wet,
A place where two different
bodies of air collide is called
a ______
front
What type of weather will a
cold front bring?
Heavy
precipitation for
a short time
What type of weather will a
warm front bring?
Light
precipitation
for a long time
Which air mass has the lowest
pressure?
A.
mP
B. mT
C. cT
D. cP
Clue- Write
characteristics of
each mass next to it.
Which air mass has the highest
pressure?
A.
mP
B. mT
C. cT
D. cP
Clue- Write
characteristics of
each mass next to it.
The weather characteristics of an
air mass result primarily from its
________
Geographic
origin
Compare an air mass from
the Gulf of Mexico with and
air mass from Canada
Cold/dry air rushing in and
pushing warm air up explains
a ___________ front
Cold
Weather along most fronts is
usually cloudy with precipitation
because the warm air along most
fronts is usually __________
Rising
and cooling, causing
water vapor to cool,
condense and form clouds.
Label each front
Cold front
Warm front
Stationary front
Occluded front
What are the characteristics of an
anticyclone
High
Pressure
Brings cool and dry conditions
Rotates clockwise
What are the characteristics of
a cyclone
Brings
warm, cloudy, and humid weather
Low Pressure
Travels counter-clockwise
Label the High and Lower
Pressure:
Compare
the following two air masses:
LOW
HIGH
mT
warm
mP
cool
Why would one maritime
air mass be more moist
than another?
It
stays over the
ocean longer.
Don’t forget to study
for the test using the
review sheet and
your notes!