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thunderstorm
/ ˈθʌԻəˌɔː /
noun
- a storm caused by strong rising air currents and characterized by thunder and lightning and usually heavy rain or hail
thunderstorm
/ ٳŭ′ə-ô′ /
- A storm of heavy rain accompanied by lightning, thunder, wind, and sometimes hail. Thunderstorms occur when moist air near the ground becomes heated, especially in the summer, and rises, forming cumulonimbus clouds that produce precipitation. Electrical charges accumulate at the bases of the clouds until lightning is discharged. Air in the path of the lightning expands as a result of being heated, causing thunder. Thunderstorms can also be caused by temperature changes triggered by volcanic eruptions and forest fires, and they occur with much greater frequency at the equatorial regions than in polar regions.
51Թ History and Origins
Origin of thunderstorm1
Example Sentences
The storm clouds bring a slight chance of thunderstorms in the region, he said.
On Saturday rain in Scotland and Northern Ireland will be followed by sunshine and showers in England and Wales with the chance of thunderstorms.
Officials issued flood and severe thunderstorm warnings for parts of the region Thursday morning as steady rain fell.
There is a possibility of heavier showers and thunderstorms hitting the southwest-facing mountains and foothills, areas that are prone to such storm patterns.
There will be enough cold air and instability for a 10% to 20% chance of thunderstorms Wednesday night into Thursday evening.
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