the front edge of a moving mass of cold air that pushes beneath a warmer air mass like a wedge
What is a cold front
100
Continental means
What is dry
100
This stage in the development of a thunderstorm consists of cumulus clouds building upward and laterally
What is the Cumulus stage
200
a lower cloud base identifies an area of rotation that is often nearly rain-free
What is a rotating wall cloud
200
which category is the strongest
What is Category 5
200
a front of air masses that moves either very slowly or not at all
What is a stationary front
200
Florida has this kind of air mass
What is maritime tropical
200
Which stage of a thunderstorm is precipitation heaviest, lightning is most frequent, and hail and even tornadoes may develop?
What is the mature stage
300
what causes the wind to go from horizontal to vertical?
What is rising air within the thunderstorm updraft tilts the rotating air from horizontal to vertical
300
at what temperature does the ocean water need to be for a hurricane to develop?
What is 81 degrees Fahrenheit
300
This is represented with red half circles
What is warm front
300
Oregon has this type of air mass
What is Maritime Polar
300
The three stages of a thunderstorm are...
What is Cumulus Stage, Mature Stage, Dissipating Stage
400
what two things can accompany a tornado?
What is hail and straight-line winds
400
a bulge of water that develops in the low-pressure center and moves along with the hurricane.
What is a storm surge
400
the front edge of advancing warm air mass that replaces colder air with warmer air
What is a warm front
400
Name all 4 types of North American air masses
What is Continental Polar, Continental Tropical, Maritime Polar, and Maritime Tropical
400
As a rule, the ____________ a thunderstorm builds into the atmosphere, the more likely it is to produce ____________________.
What is higher; severe weather
500
what are the 3 things a thunderstorm needs to start the development of a tornado?
What is change in wind direction, increase in wind speed and an increase in height
500
List the steps in the development of a hurricane
What is warm air rises over the tropical ocean, condenses, releases energy in the form of latent heat, the heat increases the rising air
500
a front that forms when a cold air mass overtakes a warm air mass and lifts the warm air mass off the ground and over another air mass
What is an occluded front
500
this word means moist
What is maritime
500
as a general rule, the greater the temperature contrast between two air masses on either side of the cold front, and the more rapidly the cold air mass wedges under the warm air mass, the _____________the chance a thunderstorm will form.