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thun·der·storm
[thuhn-der-stawrm]
NOUN
1.
a transient storm of lightning and thunder, usually with rain and gusty winds, sometimes with hail or snow, produced by cumulonimbus clouds.
Source: Dictionary.com
thunderstorm | Define thunderstorm at Dictionary.com
dictionary.reference.com/browse/thunderstorm
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en.wikipedia.org/wiki/Thunderstorm

A thunderstorm, also known as an electrical storm, lightning storm, or thundershower, is a storm characterized by the presence of lightning and its acoustic effect ...

www.nssl.noaa.gov/education/svrwx101/thunderstorms

Basic information about severe thunderstorms, from the NOAA National Severe Storms Laboratory.

www.ask.com/youtube?q=Thunderstorms&v=5fNLEPrNi2A
Apr 6, 2015 ... Thunderstorm and rain sounds - Heavy thunder & lightning strike ambience for relaxation, sleep and studying . Dont forget to like and subscribe ...

www.ready.gov/thunderstorms-lightning

All thunderstorms are dangerous. Every thunderstorm produces lightning. While lightning fatalities have decreased over the past 30 years, lightning continues to ...

www.brainpop.com/science/weather/thunderstorms

In this educational animated movie about Science learn about clouds, storms, rain, disasters, and weather.

weather.com/maps/severe/thunderstorm-forecast

View weather map showing the latest forecast for thunderstorms in the US.

eo.ucar.edu/kids/dangerwx/tstorm4.htm

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, ...

weather.cod.edu/sirvatka/ts.html

The air mass thunderstorm is a common and usually non-severe phenomenon that forms away from frontal systems or other synoptic-scale disturbances.

scied.ucar.edu/webweather/thunderstorms

Some places in the United States have more thunderstorms that other areas. What is the average number of thunderstorm days in your state?