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Severe weather can occur under a variety of situations, but three characteristics are generally needed: a temperature or moisture boundary, moisture, and (in the event of severe, precipitation-based events) instability in the atmosphere.
A 96-hour forecast of 850 mbar geopotential height and temperature from the Global Forecast System. In atmospheric science, an atmospheric model is a mathematical model constructed around the full set of primitive, dynamical equations which govern atmospheric motions.
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The stronger push of cool air will be preceded and accompanied by locally severe thunderstorms from the Midwest to the East. Temperatures and humidity are forecast to surge briefly to high levels ...
Here is a list of pictures on the Wikimedia Commons or Wikipedia, which have been voted as a featured picture, and fall under the scope of WikiProject Weather.Featured pictures are images from highly skilled creators that the Wikimedia Commons community has chosen as some of the highest quality on the site.
A weather satellite or meteorological satellite is a type of Earth observation satellite that is primarily used to monitor the weather and climate of the Earth. Satellites can be polar orbiting (covering the entire Earth asynchronously), or geostationary (hovering over the same spot on the equator ).
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Atmospheric instability is a condition where the Earth's atmosphere is considered to be unstable and as a result local weather is highly variable through distance and time. [ clarification needed ] [ 1 ] Atmospheric instability encourages vertical motion, which is directly correlated to different types of weather systems and their severity.