Tracking the Weather

Many air masses form near the _________ or near the equator

The boundary between two air masses is called a(n) _______________.

A warm air mass that pushes into a cold air mass is called a(n) _________ _______________.

Two air masses that are not moving into each other form a(n) __________ __________.

Weather maps show weather patterns. For example, linesof half cireces or triangls showthelocations of _____________.

Predicting weather conditions is called __________________.

In the U.S., fronts tend to move from ____ to _______.

Scientists use special instruments, such as ________ and __________, to predict the weather.

The sound made when lighning quickly heats the air around it is called _____________.

Thunderstorms can give rise to spinning winds that are called _____________ when they hitthe ground.

Very wide storms that form over warm ocean water are called ____________________.

The boundary between two air masses is called a(n) ___________.

Meteorologhist study weather patterns and maps so that they can predict or ________ the weather.

If a front is fast-moving and bringing stormy weather, then it is a(n) ___________ front.

A large region of air with nearly the same temperature and water vapor throughout is an air ______________.

A(n) _________ front is formed when warm air pushes into cold air and brings light, steadyrain.

Although these very wides storms from over the ocean, _______ can also cause severe damange onland.

Heavy rain and lightning warn of an approaching __________________.

Rotating columns of air form ____________________ that can reach speeds of 400 km per hour.

The body of air that slowly passes over a wide area of water or land is called a(n) ____ _________.

The place where two different air masses meet is called a(n) _______.

A cold air mass pushing under a warm air mass is called a(n) ____ __________.