Chapter 3Chapter 3 WEATHER PATTERNSWEATHER PATTERNS

AIR MASS:AIR MASS: A large body of air that has about the same temperature, air A large body of air that has about the same temperature, air

pressure, and moisture throughout. pressure, and moisture throughout.

CIRRUS CLOUDS:CIRRUS CLOUDS: A thin, feathery cloud made up of ice crystals high in the sky. A thin, feathery cloud made up of ice crystals high in the sky.

COLD FRONT:COLD FRONT: The leading edge of a cold air mass that forms as the cold air mass The leading edge of a cold air mass that forms as the cold air mass

moves into a warm air mass. moves into a warm air mass.

CUMULUS CLOUDS:CUMULUS CLOUDS: A large, puffy cloud. A large, puffy cloud.

FLASH FLOOD:FLASH FLOOD: A sudden, violent flood. A sudden, violent flood.

FRONT:FRONT: The place where two air masses meet.The place where two air masses meet.

HURRICANE:HURRICANE: A large, violent storm accompanied by strong winds and, A large, violent storm accompanied by strong winds and,

usually, heavy rain. usually, heavy rain.

STRATUS CLOUDS:STRATUS CLOUDS: A low, flat cloud that often rings drizzle.A low, flat cloud that often rings drizzle.

THUNDERSTORM:THUNDERSTORM: A storm that produces lighting and thunder and often heavy rain A storm that produces lighting and thunder and often heavy rain

and strong winds.and strong winds.

TORNADO:TORNADO: A violent funnel shaped storm of spinning wind. A violent funnel shaped storm of spinning wind.

WARM FRONT:WARM FRONT: The leading edge of a warm air mass that forms as the warm air The leading edge of a warm air mass that forms as the warm air

mass moves forward into a cold air mass. mass moves forward into a cold air mass.

WEATHER FORECASTER:WEATHER FORECASTER: A person ho makes weather predictions or reports weather A person ho makes weather predictions or reports weather

conditions. conditions.

WEATHER SATELLITE:WEATHER SATELLITE: A human made device in space that takes pictures of Earth and A human made device in space that takes pictures of Earth and

collects information about the weather. collects information about the weather.