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Weather becomes cool and clear after a thunderstorm because of the instability in the air along the "frontal boundary" between warm air and cooler air pushing in behind it.
The reason it usually becomes cool after a thunderstorm is because after the storms have settled, the jet stream has pushed the warmer air further east and the cooler air has moved in its place.
Thunderstorms contain updrafts and downdrafts. The downdrafts (caused by falling precipitation) drag cold air down from the top of the storm. When this air hits the ground it spreads out in all directions. The air from this downdraft moving in the direction of the storm is called a "gust front" and arrives just ahead of it and brings a nice cool breeze on a hot day.
What else can I help you with?
What is a severe weather alert?
The severe weather watch is when a group of meterologist decide that conditions are appropriate for an abnormally severe storm to occur. They will then alarm the public that it is likely for one of these storms to occur. Therefore, it is a good idea to be on the look out to prevent injury.
What does it mean if a thunderstorm watch is issued?
A severe thunderstorm watch means that general conditions in a region favor the formation of severe thunderstorms. It does not indicate any immediate threat. When a storm becomes severe or threatens to become so, a severe thunderstorm warning is issued. Severe thunderstorms carry the risk for wind gusts to 58 mph or greater, hail 1" or larger in diameter, and tornadoes. Note, though, that if conditions are favorable for thunderstorms to produce tornadoes, a tornado watch is issued instead.
What is a super cell thunderstorm?
A supercell thunderstorm is a severe and long-lasting thunderstorm characterized by a deep, rotating updraft called a mesocyclone. These storms can produce severe weather such as large hail, damaging winds, and tornadoes. Super cells are among the most dangerous and destructive types of thunderstorms.
Why is a cold front thunderstorm usually more severe than a warm front thunderstorm?
Cold fronts typically have steeper temperature and moisture gradients, leading to more instability and stronger uplift of air, which can result in more intense thunderstorms with factors like severe weather, heavy rainfall, and strong winds. Warm fronts, on the other hand, usually have a more gradual change in temperature and moisture, resulting in less intense thunderstorm activity.
Does a severe thunderstorm warning occur a tornado?
Most severe thunderstorms do not produce tornadoes. If a tornado is detected or it is believed a storm might produce one a tornado warning is issued, which is more serious than a severe thunderstorm warning. A thunderstorm that produces a tornado is automatically classified as severe even if other severe weather (damaging non-tornadic wind or large hail) does not occur.
Why are tornadoes severe weather?
A tornado is a violent windstorm generated by a thunderstorm. That qualifies it as a dangerous weather event, and therefore a form of severe weather.
What are the typical warning signs that many people might notice before a thunderstorm?
severe thunderstorm warning or significant weather alert
How are tornadoes weather?
A tornado is a violent vortex of wind that develops during a thunderstorm, which qualifies tornadoes as a form of severe weather.
What is a severe weather alert?
The severe weather watch is when a group of meterologist decide that conditions are appropriate for an abnormally severe storm to occur. They will then alarm the public that it is likely for one of these storms to occur. Therefore, it is a good idea to be on the look out to prevent injury.
Which of the is a large rotating thunderstorm?
A supercell is a large rotating thunderstorm that can produce severe weather, including tornadoes, hail, and strong winds.
What is a reason a tornado is a severe storm?
A tornado is a form of severe weather because it develops during a thunderstorm and is capable of producing substantial damage.
Does a severe storm warning mean that a severe storm might form?
A severe storm warning is issued when a severe storm has already been detected and poses a threat. It signifies that severe weather conditions are imminent or occurring and people should take precautions to stay safe. It does not necessarily indicate that a severe storm might form in the future.
Where are most of the tornadoes formed in a severe thunderstorm?
Usually tornadoes are found in the southwest quadrant of the thunderstorm, which is the updraft portion, usually at the back of the storm.
What type of weather is a tornado?
A tornado is type of violent, rotating windstorm that forms from a severe thunderstorm. They are once of the three severe weather hazards that the Storm Prediction Center tracks. The other two are thunderstorm wind gusts and hail. To a some degree tornadoes could be considered their own class of weather hazard.
Why does it become cool and clear after a severe thunderstorm?
Severe thunderstorms often form along cold fronts, though not always.
What is the difference between a weather watch a weather advisory and a weather warning?
A severe weather watch informs you when the conditions are right for severe weather to happen, while a warning means it is happening or is imminent, and is warning you to take immediate action.
What does it mean if a thunderstorm watch is issued?
A severe thunderstorm watch means that general conditions in a region favor the formation of severe thunderstorms. It does not indicate any immediate threat. When a storm becomes severe or threatens to become so, a severe thunderstorm warning is issued. Severe thunderstorms carry the risk for wind gusts to 58 mph or greater, hail 1" or larger in diameter, and tornadoes. Note, though, that if conditions are favorable for thunderstorms to produce tornadoes, a tornado watch is issued instead.
