Level 1 Level 3
16 words 0 ignored
Ready to learn Ready to review
Check the boxes below to ignore/unignore words, then click save at the bottom. Ignored words will never appear in any learning session.
Large bodies of air with similar moisture and temperature. They move an affect weather conditions. They are grouped accordingly to where they originate.
Orginate pole-ward of 60 degrees north and south latitude.
Originate within about 25 degrees of the equator.
Originates over land and is typically dry.
Originates over water and is typically wet.
Is relatively cooler below and does not rise (no convection). Calm, clear skies, no precipitation.
Is relatively warmer below and does rise (convection). Cloudy, windy, with precipitation.
Leading edge of an advancing air mass.
Cold air mass that meets a warmer air mass, pushes it up quickly, causing heavy rain and thunder.
Warmer air mass meets a colder air mass, warm air mass is pushed up slowly causing gentle rains.
Cold and warm air mass do not advance or push either mass out of the way.
Fast moving cold front advances on warmer air mass with a cooler air mass infront of the warm air mass. Warm air is separated (occluded) and pushed up from the Earth's surface. Cyclones can develop.
Originates in North Pole and flows south. Air mass is very cold, stable, and dry. Clear & sunny skies with high pressure.
Originates over oceans in polar regions and flows to lower latitudes. Cool, moist, and unstable. Moderate rain/snow!
Originates over water in lower latitudes. Warm and stable. California: Winter brings rains, summer is relatively sunny and clear skies. Gulf of Mexico: Warmer, wetter, and less stable with frequent rains all year.
Originates over land in lower latitudes of northern Mexico and flows north. Very hot and dry conditions, unstable surface air and more stable air at higher altitudes.