Download Weather - Galena Park ISD Moodle

Warm Front
Form when lighter,
warmer air advances over
heavier, colder air. A
warm front is drawn on
weather maps as a re line
with red semicircles.
Cold Front
• a blue line with
triangles, occurs
when colder air
advances toward
warm air and forces
the warm air out of
the area.
High Pressure
Air is sinking
More Dense
No clouds As air falls it
warms, preventing clouds
from forming. Clear skies
No precipitation
Low Pressure
Air Rising
Less Dense
Forming clouds: As air rises it cools.
As the air cools, the humidity in it
begins to condense into tiny drops of
water,
Precipitation is present
Associated with cold Fronts
Sea Breeze
As the air over
the land heats
up the cold air
over the water
moves in under
it.
Land Breeze
The land cools off
quicker than the
water. As the air
above the water
moves up the air
from the land
moves under and
over the water.
Air Masses
Continental Arctic:
Cool and damp,
bringing cloudy
weather.
Very cold and dry.
Maritime
tropical:
Warm and very
humid, forming
over the Gulf of
Mexico.
Continental
tropical:
Very hot and dry, forming
over Mexico and the
Southwest.
Continental polar:
Cold and dry, forming further
south than Arctic air masses.
Global ocean conveyor
belt
The temperature and density of water also affects its movement. Cold water is denser than
warm water. The dense water sinks, starting a deep current that moves water around the
world.
This is often called the global ocean conveyor belt. This helps to keep the earth’s
temperatures constant.
Atmosphere
The gases that
surround the
Earth. Divided
into layers based
on temperature
change.