Weather TermsExcerpt from: Hands-On Math Projects with Real-Life Applications .
Atmosphere – The thin envelope of gases, water vapor, dust, and other airborne particles that surround the earth. Commonly referred to as the "air."
Barometer – An instrument used to measure atmospheric pressure.
Blizzard – Heavy snow or blowing snow accompanied by winds of at least 35 miles per hour.
Climate – The average daily or seasonal weather of a particular place or region.
Cloud – A mass of small liquid water droplets or ice crystals suspended in the air.
Cyclone – An area of closed, circular fluid motion rotating counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere.
Dew – Moisture that has condensed on objects near the ground.
Dew point – The temperature at which water vapor condenses to a liquid.
Drizzle – Precipitation consisting of very small droplets of water.
Fair – Weather condition in which clouds cover less than 40% of the sky, there are no extremes in temperature or wind, and there is no precipitation.
Fog – A cloud hovering close to the Earth's surface.
Front – The area in which two air masses come into contact.
Frost – A thin layer of ice crystals that form on the ground and other surfaces when water vapor condenses below 32 degrees Fahrenheit or 0 degrees Celsius.
Gust – A sudden, brief increase in wind speed.
Hail – Precipitation consisting of pellets of ice.
High pressure – An air mass associated with fair weather.
Humidity – The amount of water vapor in the air.
Hurricane – An intense storm that genesally forms over tropical regions. It brings heavy rain, strong winds, and powerful storm surges that can cause severe flooding.
Lightning – The visible discharge of electricity associated with a thunderstorm.
Low pressure – An air mass associated with storms.
Meteorology – The science that studies the weather.
Mostly cloudy – Condition when 70-30% of the sky is covered with clouds.
Mostly sunny – Condition when 10-30% of the sky is covered with clouds.
Overcast – Condition when 90% or more of the sky is covered with clouds.
Partly cloudy (or partly sunny) – Condition when 30-70% of the sky is covered with clouds.
Precipitation – Any form of water, including rain, drizzle, sleet, hail, or snow, that falls to the ground.
Rain – Precipitation consisting of droplets of water.
Sleet – Precipitation consisting of ice particles.
Smog – Fog mixed with particles of pollution.
Snow – Precipitation consisting of small ice crystals.
Sunny (or clear) – Condition when less than 10% of the sky is covered with clouds.
Temperature – Degree of hotness or coldness of the air.
Thunder – The sound caused by lightning heating air and causing it to rapidly expand.
Tornado – A violent whirlwind often accompanied by heavy
rain, hail, thunder, and
Variably cloudy – Condition when cloudiness of the sky varies between 20-90%.
Weather – The condition of the atmosphere at a given time.
Wind – Moving air.
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May is Asian-Pacific-American Heritage Month! Don't overlook this opportunity to study and enjoy activities about the history and culture of Asian-Pacific American communities.
The recent rash of tornadoes in Oklahoma, which killed at least two dozen people, may have your students wondering why such natural disasters occur, how they may be affected by them, and what they can do to help. Use these resources to teach the geography of Oklahoma and the Southwestern United States, to explain tornadoes, and to discuss the resulting crises with your class.
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