Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key


Play button


Play button




Click to flip

20 Cards in this Set

  • Front
  • Back
air mass
A huge body of air that has similar temperature, pressure, and humidity throughout.
tropical (air mass)
A warm air mass that forms in the tropics and has low air pressure.
polar (air mass)
A cold air mass that forms north of the 50 degree north latitude or south of the 50 degree south latitude and has high air pressure.
maritime (air mass)
A humid air mass that forms over oceans.
continental (air mass)
A dry air mass that forms over land.
The area where air masses meet and do not mix.
Cut off, as the warm air at an occluded front is cut off from the ground by cooler air beneath it.
A swirling center of low air pressure.
A high-pressure center of dry air.
A violent disturbance in the atmosphere.
A sudden spark, or energy discharge, caused when electrical charges jump between parts of a cloud or between a cloud and the ground.
A rapidly whirling, funnel-shaped cloud that reaches down from a storm cloud to touch Earth's surface, usually leaving a destructive path.
A tropical storm that has winds of 119 kilometer per hour or higher; typically about 600 kilometers across.
storm surge
A dome of water that sweeps across the coast where a hurricane lands.
To move away temporarily.
flash flood
A sudden, violent flood that occurs within a few hours, or even minutes of a heavy rainstorm.
Scientists who study the causes of weather and try to predict it.
El Nino
An event that occurs every 2 to 7 years in the Pacific Ocean, during which winds shift and push warm surface water toward the coast of South America; it can cause dramatic climate changes.
Lines on a map joining places that have the same air pressure.
Lines on a map joining places that have the same temperature.