Photographs and text depict different aspects of weather and how it is forecast.

Discover the world's weather--from heat waves and droughts to blizzards and floods.

The restless air -- Natural signs -- The science of weather -- Watching the weather -- Forecasting -- The sun -- A sunny day -- Frost and ice -- Wet air -- The birth of a cloud -- A cloudy day -- Clouds of all kinds -- A rainy day -- Fronts and lows -- Thunder and lightning -- Monsoon -- A snowy day -- Wind -- Tropical storms -- Whirling winds -- Fog -- A day of weather -- Mountains -- On the plains -- Coastal areas -- Colors in the sky -- Climate change -- Home weather station -- Did you know? -- Weather power -- Extreme weather.