In physics, any of the series of advancing impulses set up by a vibration, pulsation, or disturbance in air or some other medium, as in the transmission of heat, light, sound, etc. Compare with climate. A system for transmitting visual reproductions of weather forecast maps, temperature summaries, cloud analyses, etc. via radio waves. Partly sunny and partly cloudy - Both terms refer to 30 to 70 percent cloud cover. Fog - A cloud on the ground.
Fog is composed of billions of tiny water droplets floating in the air.
Snow - Precipitation of ice crystals. Snow flurries - Intermittent snowfall that may result in little accumulation. Sleet - Pellets of ice that form when rain or melting snowflakes freeze while falling. Freezing rain - Rain that turns to ice on impact with the surface. Rain - Extended period of precipitation.