What is an air mass?
Scientists classify air masses according to _________ and ____________.
Polar air masses have HIGH/LOW air pressure.
What are the characteristics of a maritime polar air mass?
Name the four types of fronts.
What is a storm?
Where do tornadoes occur most often?
Thunderstorms and tornadoes can form from what type of cloud?
A "dome" of water that sweeps across the coast where the hurricane lands is called a(n) _____________.
When does snow fall?
True or False: Floods are the most dangerous weather-related events in the United States.
What is a flash flood?
What are two things that can cause a floah flood?
Describe the difference between a flood warning and a flood watch.
What are other ways, besides high waters, that floods can cause damage?
True or False: Winds spiral inward towards the center of a cyclone.
What normally happens to the strength of a hurricane as it hits land?
Why do hurricanes NOT form in the Northern Atlanic Ocean?
IN the Northern Hemisphere, in which direction do the winds of a cyclone always spin?
A warm-water event that occurs periodically in the Pacific Ocean is called _________
Scientists who study the causes of weather an try to predict it are called __________.
Where is the safest place to be during a tornado?
Describe a cold front?
A sudden energy discharge between parts of acloud or between the cloud and the ground is called __________.
Describe an occluded front?
A huge body of air that has similar temperature, humidity, and air pressure throughout it.
temperature and humidity
high
cool and moist/humid
cold front, warm front, stationary front, and occluded front.
a violent disturbance in the atmosphere
The Great Plains of the United States
cumulonimbus clouds
Storm Surge
Snow falls when humid air cools below 0 degrees Celsius
True
A sudden, violent flood that occurs within a few hours, or even minutes, of a storm.
Rain, Dams breaking, Ice jams breaking free.
warning: An announcement that floods have already been reported or are about to occur; watch: an announcment describing the area in which flooding is possible.
power outages, landslides, polluted drinking water, interruption of emergency services.
true
It decreases
Because the hurricanes need the energy of warm ocean water to form, and the waters of the North Atlantic are too cool to provide enough energy.
counterclockwise
Meteorologists
In the basement of a well-built building
A rapidly moving cold air mass runs into a slowly moving warm air mass.
A warm air mass is caught between two cooler air masses.
