Flashcards in Words Deck (26)
is the force exerted onto a surface by the weight of the air
the envelope of gases surrounding the earth or another planet.
an instrument measuring atmospheric pressure, used especially in forecasting the weather and determining altitude.
another term for atmospheric pressure.
the pressure exerted by the weight of the atmosphere, which at sea level has a mean value of 101,325 pascals (roughly 14.6959 pounds per square inch).
of or denoting a scale of temperature in which water freezes at 0° and boils at 100° under standard conditions.
the weather conditions prevailing in an area in general or over a long period.
is a dense towering vertical cloud associated with thunderstorms and atmospheric instability, forming from water vapor carried by powerful upward air currents.
are often described as "puffy", "cotton-like" or "fluffy" in appearance, and have flat bases. being low-level clouds, are generally less than 2,000 m (6,600 ft) in altitude unless they are the more vertical cumulus congestus form.
the atmospheric temperature (varying according to pressure and humidity) below which water droplets begin to condense and dew can form.
a prolonged period of abnormally low rainfall; a shortage of water resulting from this.
the temperature at which a liquid turns into a solid when cooled.
A storm with a violent wind, in particular a tropical cyclone in the Caribbean.
a wind of force 12 on the Beaufort scale (equal to or exceeding 64 knots or 74 mph).
a rotating funnel-shaped cloud forming the core of a tornado or waterspout.
a gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, chlorofluorocarbons, and other pollutants.
pellets of frozen rain that fall in showers from cumulonimbus clouds.
the state or quality of being humid.
a quantity representing the amount of water vapor in the atmosphere or a gas.
the branch of science concerned with the processes and phenomena of the atmosphere, especially as a means of forecasting the weather.
the action or process of precipitating a substance from a solution.
rain, snow, sleet, or hail that falls to the ground.
a loud rumbling or crashing noise heard after a lightning flash due to the expansion of rapidly heated air.
a storm with thunder and lightning and typically also heavy rain or hail.
a mobile, destructive vortex of violently rotating winds having the appearance of a funnel-shaped cloud and advancing beneath a large storm system.
forms when a low pressure area is accompanied by thunderstorms that produce a circular wind flow with maximum sustained winds below 39 mph.
a tropical storm in the region of the Indian or western Pacific oceans.
the state of the atmosphere at a place and time as regards heat, dryness, sunshine, wind, rain, etc.
is a weather system that is the boundary separating two different types of air. One type of air is usually denser than the other, with different temperatures and different levels of humidity. This clashing of air types causes weather: rain, snow, cold days, hot days, and windy days