Download What are Fronts?

Where are the hot and cold temperatures?
This is a
front 
What type of
weather looks
like it is
associated with
fronts??
What’s happening in
the two pictures?
What are Fronts?
An interface (boundary)
between 2 air masses
Conditions at the front are
unstable and usually
associated with
precipitation
Cold Fronts:
Cold air
moves into
an area
occupied
by warm
air
The colder, denser air
quickly pushes under the
warm air
The warm air rises,
producing tall, thick clouds
Precipitation occurs –
moves quickly and
violently
Temperatures are cooler
behind a cold front, and
warmer ahead of the cold
front.
Cold Front Animation
Warm Fronts:
Warm air
mass
moves
into an
area
occupied
by cool air
The warmer, less dense
air slowly moves over
cold air mass
Warm air slowly rises,
expands, cools, and
clouds form
Lasts for a longer
period of time
Temperatures are warmer
behind a warm front, and
cooler ahead of the front.
Warm Front Animation