Weather Maps flashcard

Front

What is the primary purpose of a weather map?

Back

To show present weather and forecast future weather

Answer explanation

The primary purpose of a weather map is to show present weather conditions and forecast future weather, making it essential for understanding atmospheric changes and planning accordingly.

Front

What does a weather front indicate?

Back

A change in weather

Answer explanation

A weather front indicates a change in weather conditions, such as temperature, precipitation, and wind patterns, as different air masses meet. This is why the correct answer is 'A change in weather'.

Front

What happens to air temperatures ahead of a cold front?

Back

They become warmer

Answer explanation

Ahead of a cold front, warm air is pushed up, leading to an increase in air temperatures. This is why temperatures become warmer before the cold front arrives.

Front

What replaces the colder air mass in a warm front?

Back

A warmer (less dense) air mass

Answer explanation

In a warm front, the colder air mass is replaced by a warmer (less dense) air mass, which rises over the colder air, leading to gradual temperature increases and cloud formation.

Front

How are warm fronts represented on a weather map?

Back

Red lines with semicircles

Answer explanation

Warm fronts are represented on weather maps by red lines with semicircles. This indicates the direction of the warm air moving in, distinguishing them from cold fronts, which use blue lines with triangles.

Front

What happens to the weather when a front passes over an area?

Back

It changes

Answer explanation

When a front passes over an area, it typically brings changes in temperature, humidity, and wind patterns. Therefore, the correct answer is that the weather 'changes'.

Front

Effect of a cold front on wind direction?

Back

Causes a shift in wind direction

Answer explanation

A cold front causes a shift in wind direction as it moves in, typically bringing winds from the north or northwest, altering the prevailing wind patterns in the area.

Front

What typically happens to temperatures behind a cold front?

Back

They decrease

Answer explanation

Behind a cold front, colder air replaces warmer air, leading to a decrease in temperatures. This is why the correct answer is that temperatures typically decrease.

Front

What is the main characteristic of a warm front?

Back

It brings warmer temperatures

Answer explanation

A warm front is characterized by the movement of warm air over cooler air, leading to an increase in temperatures. Therefore, the correct answer is that it brings warmer temperatures.

Front

What is the typical movement of a stationary front?

Back

No movement

Answer explanation

A stationary front is characterized by little to no movement, as it occurs when warm and cold air masses meet but neither is strong enough to replace the other. This results in a stable boundary with minimal displacement.