Please enable JavaScript.
Coggle requires JavaScript to display documents.
Weather Pattens (Pressure Systems (Low pressure system (Earth’s atmosphere…
Weather Pattens
Pressure Systems
If air pressure is LOW, it means air is rising
If air pressure is HIGH, it means air is
sinking.
-
Low pressure system
- Earth’s atmosphere
pushes down on us.
- The Earth’s surface
is warmed by the sun’s rays.
- Warm air rises. This reduces the weight of air pushing down on us
-
-
-
-
-
-
-
Fronts
-
-
Occluded Front
-
-
-
-
-
A fast-moving cold air mass catches up with a slow-moving warm air mass and forces the warm air up. The cold air keeps moving until it meets another cold air mass.
Stationary Front
-
-
-
-
-
-
A cold air mass meets a warm air mass, but little
movement occurs.
-
Severe Weather
-
Tornado
violent, whirling column of air that contacts the ground
-
-
Hurricane
-
-
-
form near warm, tropical oceans
-
when moving over land or cold water, it loses energy
-
