The average weather of a region over a long period of time

A weather tool used to measure air pressure

type of pressure that usually means it will be cloudy, rainy, or windy

An instrument used to measure temperature

Large bodies of air that move though the atmosphere and have the same temperature, moisture, and pressure

Boundaries that separate warm air masses from cold air masses

Type of front that pushes warm air up quickly and may cause thunderstorms or heavy rain

a result from the condensation of water vapor on dust particles in the air

Puffy clouds that appear to rise up from a flat bottom

These clouds usually cover the whole sky and bring overcast, gray weather and produce gentle rain

A stratus cloud that touches the ground

This happens when clouds get full and heavy and water falls back to the Earth in the form of rain, hail, sleet or snow

Powerful winds that travel at high altitudes that influence precipitation and mark clouds boundaries between huge air masses

When warm air rises over the land and the air over the ocean sinks

An intense tropical storm with powerful winds and heavy rain

a storm with lightning and thunder usually formed by a cumulonimbus clouds

type of pressure that usually creates cool, dry air and clear skies

instrument used to measure the amount of precipitation

A weather tool used to measure wind direction

An instrument used to measure the amount of humidity or water vapor in the air

A thin layer of mixed gases that covers the Earth. It also makes up the air we breathe

type of front that pushes the cold air mass out and brings in warm, moist air and steady rain

Clouds in blanket like layers that cover the sky

wispy and thin clouds that form at very high altitudes and made of ice crystals

Meaning "rain" or "rainy cloud" likely to bring precipitation like rain or snow

These clouds are formed from cold fronts and often produce lightning and thunder

The process when the sun turns liquid into a gas called water vapor and rise into the sky

When the water vapor in the air gets cold and changes back into liquid and forms clouds