Instrument used to determine wind direction

• air pump
• wind vane
• cyclone
• air pressure

Measurement of the speed of moving air

• leaf blower
• fan
• wind speed
• tornado

Meeting of two different types of air masses

• warm and cold
• hurricane
• precipitation
• weather front

Instrument for measuring temperature

• temperature vane
• hygrometer
• thermometer
• rain gauge

A long, low, gray cloud that could be layered

• stratus
• nimbus
• cumulus
• cirrus

Amount of water vapor in the air compared to the amount of water the air could hold at that temperature

• droplets
• condensation
• relative humidity
• snow

Instrument for measuring the amount of rain that falls

• rain gauge
• wind vane
• hygrometer
• thermometer

Rain, snow, sleet, hail, etc

• rocks that fall out of the sky
• tornado
• precipitation
• forecast

A scientist who studies and forecasts weather

• weatherologist
• news reporter
• zoologist
• meteorologist

Instrument used to measure relative humidity

• thermometer
• wind vane
• hygrometer
• rain gauge