Weather Tools
Air Pressure
Precipitation
Clouds
Extreme Weather
100

measures the temperature of the air and tells how hot or cold it is

Thermometer

100

Air masses that are associated with fair weather, such as clear skies and light winds.

HIGH PRESSURE

100

What starts as ice crystals in clouds, then the atmosphere temperature is above freezing, As it falls to the ground, it melts into liquid droplets?

Rain

100

• Fluffy, white clouds with flat bottoms

• Usually indicate fair weather

Cumulus

100

• May develop in humid, warm conditions

• Usually produces heavy rain for 30-60 minutes

• Lightning comes before thunder

Thunderstorms

200

measures the amount of rain that has fallen since the last measurement

Rain Gauge

200

Air masses that are associated with rainy or stormy weather and strong winds.

LOW PRESSURE

200

What starts as rain, but as the liquid droplets fall, they pass through a layer of very cold air, then the droplets cool below the freezing point but stay liquid, and When the droplets hit the frozen ground, they freeze?

Freezing Rain

200

• Feathery, wispy clouds

• Indicate fair weather now but often mean that rain or snow will fall within several hours

Cirrus

200

• Funnel shaped columns of air that form from thunderstorms when wind changes direction and gains strength from the height

• Air begins to rotate and turns vertical

Tornadoes

300

measures wind speed and direction

Anemometer

300

Air pressure is due to the pull of _____ on the atmosphere at a particular place on Earth.

Gravity

300

What starts out as ice crystals in clouds, then snowflakes fall through a small layer of air that is just above freezing, so they partially melt, and they enter a layer of freezing air and refreeze before hitting the ground?

Sleet

300

• Smooth, gray clouds that block sunlight and cover the sky

• Often associated with light rain or drizzle

Stratus

300

• Huge slow-moving storms

• Occur over warm ocean water

• Have winds equal to or greater that 74 miles per hour

Hurricanes

400

measures the atmospheric pressure

Barometer

400

Air pressure is constantly changing due to these two things

Temperature and Wind

400

What starts as ice crystals in clouds, then snowflakes fall through freezing air and stay frozen all the way to the ground?

Snow

400

• Cumulus clouds that grow in height and darken on the bottom

• May produce thunderstorms

Cumulonimbus

400

What type of extreme weather is most likely to occur in summer and fall?

Hurricanes

500

This person uses weather data to forecast weather.

Meteorologist

500

What kind of weather is likely to happen if the air pressure drops?

Rainy, stormy weather

500

What is the biggest factor in determining if it will rain or snow?

Temperature

500

Which type of cloud most likely indicates a thunderstorm is approaching?

Cumulonimbus

500

Name the 2 types of extreme weather that are most likely to occur in spring and summer.

Thunderstorms and Tornadoes

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