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Storm - Wikipedia


A storm is any disturbed state of an environment or astronomical body's atmosphere especially ... High wind is also the cause of sandstorms in dry climates.

What causes storms? | Reference.com


Storms are formed when the movement of cold and warm air currents creates extreme ... is created at an atmospheric level as warm wet air rushes, causing cold.

What causes thunderstorms?


Nov 28, 2010 ... Brief, simplified description of what causes thunderstorms.

What causes storms - Answers.com


In simple terms, storms can be caused by the meeting of very cold air with very warm air. A storm originates when a low pressure system is surrounded by a high  ...

How Do Thunderstorms Form? - Dangerous Weather


Orographic thunderstorms are caused by air that is forced up by a mountain or hillside. Air mass thunderstorms are the result of localized convection in an ...

What causes Severe Weather? - Geoscience Australia


On the largest scale severe storms are associated with the low pressure systems which are depicted on weather maps. Intense low pressure systems generate ...

What causes severe storms? - Tornado Titans - Storm Chasing ...


Despite what you may have heard, severe weather does not magically occur with no rhyme or reason. To get severe thunderstorms, you need plenty of lift, ...

Oklahoma tornado: What causes storms in 'Tornado Alley'? - BBC.com


May 21, 2013 ... The geography and climate of the region frequently create the conditions for huge thunderstorms - with warm, wet air blowing in from the Gulf of ...

What causes a solar storm? - NASA


when these storms arrive, and forecast their arrival. Statistical data can be used to draw conclusions about cause-and-effect relationships, even though the ...

NOAA/NASA SciJinks :: What causes lightning and thunder?


As the storm moves over the ground, the strong negative charge in the cloud attracts positive charges in the ground. These positive charges move up into the ...

The action of warm air rising and cold air sinking (convection) plays a key role in the formation of severe thunderstorms. If the warm surface air is forced to rise, it will continue to rise, because it is less dense than the surrounding air.
Two of the most important ingredients for thunderstorm formation are instability (unstable air) and moisture.
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Thunderstorms - Weather Wiz Kids weather information for kids


A thunderstorm is a storm with lightning and thunder. ... Since opposites attract, that causes a positive charge to build up on the ground beneath the cloud.

Thunderstorm Basics - NSSL The National Severe Storms Laboratory


Many hazardous weather events are associated with thunderstorms. Under the right conditions, rainfall from thunderstorms causes flash flooding, killing more ...

Weather Basics (Stormsurf)


When the warm air is forced up, it causes surface air pressure to drop, sort of like ... In the north hemisphere, wind rotates counter-clockwise around a storm ...