WEATHER further explanation


the state of the atmosphere at a particular time and place

weather is described in terms of variable conditions such as air temperature, humidity, wind speed (velocity), and air pressure (barometric pressure)



the average weather conditions prevailing in an area over a long period of time

meteorological data

meteorological facts pertaining to the atmosphere, such as air temperature, humidity, wind speed (velocity), and air pressure (barometric pressure)

interpret meteorological data to make predictions about the weather


an expert in meteorology; a weather forecaster

factors that affect weather

air temperature, humidity, wind speed (velocity), air pressure (barometric pressure)


air temperature is a measure of how much heat energy is in the air (thermometer)

temperature determines how much water vapor the air can hold

higher air temperature holds more water vapor lower air temperature holds less water vapor

as warm, wet air cools, the water vapor condenses and forms clouds, fog, or precipitation


humidity is the amount of moisture in the air (hygrometer)

higher humidity means more moisture in the air

lower humidity means less moisture in the air

moisture leads to precipitation in the form of rain, sleet, snow, or hail

air pressure or barometric pressure

air Pressure is the weight of Earth’s atmosphere pressing in all directions (barometer)

a high-pressure system indicates good weather is on the way

a low-pressure system indicates precipitation is on the way (rain, sleet, snow, or hail)

steady air pressure indicates precipitation or sun

wind speed (velocity)

wind speed is simply air in motion and it is caused by the uneven heating of Earth’s surface by the Sun

strong winds indicates a storm is coming, a tornado is a rapidly rotating funnel cloud, and a hurricane, cyclone, typhoon are storms over the ocean


Created By
Athanasios Bayiates


Created with images by sethink - "lightning storm weather" • Newtown grafitti - "George & Druitt" • Mollenborg - "Snow" • scheidegger0 - "sunbeam rays sun" • janeb13 - "tropical cyclone catarina march 26th 2004 cyclone" • NOAA Photo Library - "wea00208" • journeyguy - "Sleet Covering" • werner22brigitte - "dramatic sky clouds tree" • USDAgov - "20140204-OC-UNK-0029" • NASA Goddard Photo and Video - "Strong Extratropical Cyclone Over the US Midwest" • 1lenore - "four" • Ryan Vaarsi - "04-04-10 20" • - "Photo 58398" • RBerteig - "Anenometer Anaglyph"

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