air pressure
Air pressure is the weight of the ________.
atmosphere pressing down on the earth.
In which direction do prevailing westerlies flow?
from west to east
Humidity is measured with a
hygrometer
What kind of weather can happen at cold fronts?
Heavy rain or snow, cloudy skies or thunderstorms.
A severe storm that involves high winds and forms over water is:
hurricane
It is measured by a ________?
barometer
In a sea breeze, the air is warmer above the _____.
land
what is Humidity
Water vapor in the air
What are four types of fronts
Cold front, warm front, occluded front and stationary front.
What are tornadoes?
a mobile, destructive vortex of violently rotating winds having the appearance of a funnel shaped cloud and beneath a large storm system.
Air does not have any mass.
Ture or False
False
How does the air move in a land breeze?
From the land to the ocean
This is the measure of moisture in the air.
humidity
What happens during a warm front?
A warm air mass collides with a cold air mass.
A severe storm which involves a funnel cloud forming over land is:
tornado
What are the 3 properties of air?
mass, density and pressure
The jet stream usually moves from
west to east
This is how much actual water vapor is in the air at a certain temperature.
Relative humidity
What kind of weather can happen at warm fronts?
Showers, light rain and scattered clouds.
These can be produced by thunderstorms
tornadoes
What does falling air pressure mean?
a storm is approaching
What causes wind?
convection currents
This is the greatest amount of water vapor the air could hold at a certain temperature
Absolute humidity
What kind of weather can happen at occluded fronts
Storms, rain, snow or clouds.
What do hurricanes feed on?
warm tropical water