Describing Weather + Weather Patterns

A cloud that forms near Earth’s surface is called dew point.

Clouds are water droplets or ice crystals suspended in the atmosphere.

The dew point is the temperature at which air is fully saturated (100% humidity) because of decreasing temperatures while holding the amount of moisture constant.

When the humidity is high, there is less water vapor in the air.

The amount of water vapor in the air is called __________.

Meteorologists measure wind speed using an instrument called an anemometer.

As air moves from areas of low pressure to areas of high pressure, it creates wind.

Air pressure is the pressure that a column of air exerts (apply) on the air, or surface, below it.

Molecules in warm air move slower than molecules in cold air.

Air temperature is the measure of the total kinetic energy of molecules in the air.

Temperature and rainfall are just two of the variables (ตัวแปร) used to describe the weather.

The weather can't change quickly or be the same for several days in a row.

From the figure below, this is a low-pressure system

From the figure below, this is a low-pressure system

From the figure below, this is a warm front system.

From the figure below, this is a Cold Front System.

Cold fronts is when a colder air mass moves toward a warmer air mass.

Warm fronts form when a colder air mass moves toward a warmer air mass.

The cumulus stage is dominated by cloud formation and updrafts.

In the dissipation stage, it is dominated by cloud formation and updrafts.