Exam 25: Driving Forces of Weather

We feel uncomfortably warm on a muggy day because water molecules are

Orographic lifting occurs as

Air is considered unstable when it

Is it possible for the temperature of an air mass to change if no thermal energy is added or subtracted? Defend your answer.

Cumulus clouds generally occur in an atmospheric state of

On a weather map,closely spaced circular isobars around a central low pressure area with winds moving counterclockwise about the center may represent

Severe thunderstorms are common

Warm air rises and cool air sinks.So,when an air parcel rises it becomes

In a thunderstorm,the falling rain creates

When a volume of air is compressed,its temperature

As air temperature decreases,relative humidity

As air rises,it expands.It expands because it moves to

Explain how a convection cycle is generated.

Fair weather can usually be expected with the approach of a

As the air cools,water-vapor molecules slow down and capacity

Lightning occurs as

An air mass with circulatory motion is called

Heavy snow showers along the western slopes of the Rockies are most likely caused by a

A weather map has many symbols and lines.Isobars are lines that

As rising air cools,