Weather and Climate - Earth Science
Card 1 of 800
The image above depicts the motion of two air masses in what kind of front?
The image above depicts the motion of two air masses in what kind of front?
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The answer is "a cold front."
A cold front moves faster than a warm air mass. The warm humid air is pushed up and results in a short period of heavy rain and possibly violent thunderstorms.
A warm front moves slower than a cold air mass. The warm raises steadily above the cooler air mass and causes gentle rain showers for longer periods of time.
An occluded front is a combination of two fronts that form when a cold front catches up and overtakes a warm front. The result is a mix of rain showers and thunderstorms.
A stationary front is the boundary between two air masses when neither is moving. Clear skies to partly cloudy skies may result, with occasional light rain.
The answer is "a cold front."
A cold front moves faster than a warm air mass. The warm humid air is pushed up and results in a short period of heavy rain and possibly violent thunderstorms.
A warm front moves slower than a cold air mass. The warm raises steadily above the cooler air mass and causes gentle rain showers for longer periods of time.
An occluded front is a combination of two fronts that form when a cold front catches up and overtakes a warm front. The result is a mix of rain showers and thunderstorms.
A stationary front is the boundary between two air masses when neither is moving. Clear skies to partly cloudy skies may result, with occasional light rain.
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The image depicts the motion of two air masses in what kind of front?
The image depicts the motion of two air masses in what kind of front?
Tap to reveal answer
The answer is "a warm front."
A cold front moves faster than a warm air mass. The warm humid air is pushed up and results in a short period of heavy rain and possibly violent thunderstorms.
A warm front moves slower than a cold air mass. The warm raises steadily above the cooler air mass and causes gentle rain showers for longer periods of time.
An occluded front is a combination of two fronts that form when a cold front catches up and overtakes a warm front. The result is a mix of rain showers and thunderstorms.
A stationary front is the boundary between two air masses when neither is moving. Clear skies to partly cloudy skies may result, with occasional light rain.
The answer is "a warm front."
A cold front moves faster than a warm air mass. The warm humid air is pushed up and results in a short period of heavy rain and possibly violent thunderstorms.
A warm front moves slower than a cold air mass. The warm raises steadily above the cooler air mass and causes gentle rain showers for longer periods of time.
An occluded front is a combination of two fronts that form when a cold front catches up and overtakes a warm front. The result is a mix of rain showers and thunderstorms.
A stationary front is the boundary between two air masses when neither is moving. Clear skies to partly cloudy skies may result, with occasional light rain.
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A warm front moves slower than a cold air mass. What kind of weather is caused when warm air raises steadily above the cooler air mass?
A warm front moves slower than a cold air mass. What kind of weather is caused when warm air raises steadily above the cooler air mass?
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The answer is "gentle showers."
A cold front moves faster than a warm air mass. The warm humid air is pushed up and results in a short period of heavy rain and possibly violent thunderstorms.
A warm front moves slower than a cold air mass. The warm raises steadily above the cooler air mass and causes gentle rain showers for longer periods of time.
An occluded front is a combination of two fronts that form when a cold front catches up and overtakes a warm front. The result is a mix of rain showers and thunderstorms.
A stationary front is the boundary between two air masses when neither is moving. Clear skies to partly cloudy skies may result, with occasional light rain.
The answer is "gentle showers."
A cold front moves faster than a warm air mass. The warm humid air is pushed up and results in a short period of heavy rain and possibly violent thunderstorms.
A warm front moves slower than a cold air mass. The warm raises steadily above the cooler air mass and causes gentle rain showers for longer periods of time.
An occluded front is a combination of two fronts that form when a cold front catches up and overtakes a warm front. The result is a mix of rain showers and thunderstorms.
A stationary front is the boundary between two air masses when neither is moving. Clear skies to partly cloudy skies may result, with occasional light rain.
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What type of front forms when a cold front catches up with and overtakes a warm air front?
What type of front forms when a cold front catches up with and overtakes a warm air front?
Tap to reveal answer
A cold front moves faster than a warm air mass. The warm humid air is pushed up and results in a short period of heavy rain and possibly violent thunderstorms.
A warm front moves slower than a cold air mass. The warm raises steadily above the cooler air mass and causes gentle rain showers for longer periods of time.
An occluded front is a combination of two fronts that form when a cold front catches up and overtakes a warm front. The result is a mix of rain showers and thunderstorms.
A stationary front is the boundary between two air masses when neither is moving. Clear skies to partly cloudy skies may result, with occasional light rain.
A cold front moves faster than a warm air mass. The warm humid air is pushed up and results in a short period of heavy rain and possibly violent thunderstorms.
A warm front moves slower than a cold air mass. The warm raises steadily above the cooler air mass and causes gentle rain showers for longer periods of time.
An occluded front is a combination of two fronts that form when a cold front catches up and overtakes a warm front. The result is a mix of rain showers and thunderstorms.
A stationary front is the boundary between two air masses when neither is moving. Clear skies to partly cloudy skies may result, with occasional light rain.
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What type of front is occuring when warm humid air of a warm air mass is pushed up and results in a short period of heavy rain and possibly violent thunderstorms?
What type of front is occuring when warm humid air of a warm air mass is pushed up and results in a short period of heavy rain and possibly violent thunderstorms?
Tap to reveal answer
The answer is "a cold front."
A cold front moves faster than a warm air mass. The warm humid air is pushed up and results in a short period of heavy rain and possibly violent thunderstorms.
A warm front moves slower than a cold air mass. The warm raises steadily above the cooler air mass and causes gentle rain showers for longer periods of time.
An occluded front is a combination of two fronts that form when a cold front catches up and overtakes a warm front. The result is a mix of rain showers and thunderstorms.
A stationary front is the boundary between two air masses when neither is moving. Clear skies to partly cloudy skies may result, with occasional light rain.
The answer is "a cold front."
A cold front moves faster than a warm air mass. The warm humid air is pushed up and results in a short period of heavy rain and possibly violent thunderstorms.
A warm front moves slower than a cold air mass. The warm raises steadily above the cooler air mass and causes gentle rain showers for longer periods of time.
An occluded front is a combination of two fronts that form when a cold front catches up and overtakes a warm front. The result is a mix of rain showers and thunderstorms.
A stationary front is the boundary between two air masses when neither is moving. Clear skies to partly cloudy skies may result, with occasional light rain.
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What is the result of a cool air mass and a warm air mass converging low to the ground?
What is the result of a cool air mass and a warm air mass converging low to the ground?
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The answer is "stormy weather patterns"
A cold front moves faster than a warm air mass. The warm humid air is pushed up and results in a short period of heavy rain and possibly violent thunderstorms.
A warm front moves slower than a cold air mass. The warm air raises steadily above the cooler air mass and causes gentle rain showers for longer periods of time.
An occluded front is a combination of two fronts that form when a cold front catches up and overtakes a warm front. The result is a mix of rain showers and thunderstorms.
A stationary front is the boundary between two air masses when neither is moving. Clear skies to partly cloudy skies may result, with occasional light rain.
The answer is "stormy weather patterns"
A cold front moves faster than a warm air mass. The warm humid air is pushed up and results in a short period of heavy rain and possibly violent thunderstorms.
A warm front moves slower than a cold air mass. The warm air raises steadily above the cooler air mass and causes gentle rain showers for longer periods of time.
An occluded front is a combination of two fronts that form when a cold front catches up and overtakes a warm front. The result is a mix of rain showers and thunderstorms.
A stationary front is the boundary between two air masses when neither is moving. Clear skies to partly cloudy skies may result, with occasional light rain.
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What weather condition is most likely to be the result of two air masses with greatly different air pressures colliding?
What weather condition is most likely to be the result of two air masses with greatly different air pressures colliding?
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The answer is "high winds" because the types of air masses were not defined and wind is caused by differences in air pressure.
A cold front moves faster than a warm air mass. The warm humid air is pushed up and results in a short period of heavy rain and possibly violent thunderstorms.
A warm front moves slower than a cold air mass. The warm air raises steadily above the cooler air mass and causes gentle rain showers for longer periods of time.
An occluded front is a combination of two fronts that form when a cold front catches up and overtakes a warm front. The result is a mix of rain showers and thunderstorms.
A stationary front is the boundary between two air masses when neither is moving. Clear skies to partly cloudy skies may result, with occasional light rain.
The answer is "high winds" because the types of air masses were not defined and wind is caused by differences in air pressure.
A cold front moves faster than a warm air mass. The warm humid air is pushed up and results in a short period of heavy rain and possibly violent thunderstorms.
A warm front moves slower than a cold air mass. The warm air raises steadily above the cooler air mass and causes gentle rain showers for longer periods of time.
An occluded front is a combination of two fronts that form when a cold front catches up and overtakes a warm front. The result is a mix of rain showers and thunderstorms.
A stationary front is the boundary between two air masses when neither is moving. Clear skies to partly cloudy skies may result, with occasional light rain.
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Which of the following best describes how air masses move across the United States?
Which of the following best describes how air masses move across the United States?
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The answer is "The westerlies move air masses from west to east but sometimes get deflected by the jet stream."
A cold front moves faster than a warm air mass. The warm humid air is pushed up and results in a short period of heavy rain and possibly violent thunderstorms.
A warm front moves slower than a cold air mass. The warm air rises steadily above the cooler air mass and causes gentle rain showers for longer periods of time.
An occluded front is a combination of two fronts that form when a cold front catches up and overtakes a warm front. The result is a mix of rain showers and thunderstorms.
A stationary front is the boundary between two air masses when neither is moving. Clear skies to partly cloudy skies may result, with occasional light rain.
The answer is "The westerlies move air masses from west to east but sometimes get deflected by the jet stream."
A cold front moves faster than a warm air mass. The warm humid air is pushed up and results in a short period of heavy rain and possibly violent thunderstorms.
A warm front moves slower than a cold air mass. The warm air rises steadily above the cooler air mass and causes gentle rain showers for longer periods of time.
An occluded front is a combination of two fronts that form when a cold front catches up and overtakes a warm front. The result is a mix of rain showers and thunderstorms.
A stationary front is the boundary between two air masses when neither is moving. Clear skies to partly cloudy skies may result, with occasional light rain.
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Which of the following is defined as "a relatively narrow band of strong wind in the upper levels of the atmosphere moving from west to east caused by Earth's rotation"?
Which of the following is defined as "a relatively narrow band of strong wind in the upper levels of the atmosphere moving from west to east caused by Earth's rotation"?
Tap to reveal answer
The answer is "The Jet Stream"
A cold front moves faster than a warm air mass. The warm humid air is pushed up and results in a short period of heavy rain and possibly violent thunderstorms.
A warm front moves slower than a cold air mass. The warm air rises steadily above the cooler air mass and causes gentle rain showers for longer periods of time.
An occluded front is a combination of two fronts that form when a cold front catches up and overtakes a warm front. The result is a mix of rain showers and thunderstorms.
A stationary front is the boundary between two air masses when neither is moving. Clear skies to partly cloudy skies may result, with occasional light rain.
The answer is "The Jet Stream"
A cold front moves faster than a warm air mass. The warm humid air is pushed up and results in a short period of heavy rain and possibly violent thunderstorms.
A warm front moves slower than a cold air mass. The warm air rises steadily above the cooler air mass and causes gentle rain showers for longer periods of time.
An occluded front is a combination of two fronts that form when a cold front catches up and overtakes a warm front. The result is a mix of rain showers and thunderstorms.
A stationary front is the boundary between two air masses when neither is moving. Clear skies to partly cloudy skies may result, with occasional light rain.
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Which of the following moves air masses from west to east, due to prevailing winds in the middle latitudes between 35 and 65 degrees latitude?
Which of the following moves air masses from west to east, due to prevailing winds in the middle latitudes between 35 and 65 degrees latitude?
Tap to reveal answer
The answer is "The Westerlies."Prevailing Westerlies are the winds in the middle latitudes between 35 and 65 degrees latitude. They tend to blow from the high pressure area in the horse latitudes towards the poles. These prevailing winds blow from the west to the east steering extratropical cyclones in this general manner.
A cold front moves faster than a warm air mass. The warm humid air is pushed up and results in a short period of heavy rain and possibly violent thunderstorms.
A warm front moves slower than a cold air mass. The warm air rises steadily above the cooler air mass and causes gentle rain showers for longer periods of time.
An occluded front is a combination of two fronts that form when a cold front catches up and overtakes a warm front. The result is a mix of rain showers and thunderstorms.
A stationary front is the boundary between two air masses when neither is moving. Clear skies to partly cloudy skies may result, with occasional light rain.
The answer is "The Westerlies."Prevailing Westerlies are the winds in the middle latitudes between 35 and 65 degrees latitude. They tend to blow from the high pressure area in the horse latitudes towards the poles. These prevailing winds blow from the west to the east steering extratropical cyclones in this general manner.
A cold front moves faster than a warm air mass. The warm humid air is pushed up and results in a short period of heavy rain and possibly violent thunderstorms.
A warm front moves slower than a cold air mass. The warm air rises steadily above the cooler air mass and causes gentle rain showers for longer periods of time.
An occluded front is a combination of two fronts that form when a cold front catches up and overtakes a warm front. The result is a mix of rain showers and thunderstorms.
A stationary front is the boundary between two air masses when neither is moving. Clear skies to partly cloudy skies may result, with occasional light rain.
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Which of the following best defines a "warm front"?
Which of the following best defines a "warm front"?
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The answer is "a boundary between two different air masses, where cold air is retreating and warm air is advancing."
A front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.
Thunderstorms are caused by moisture and differences in air pressure. Remember that warm air rises and cold air sinks. When warm, moist air is near the ground and cold, dry air is up above, convection will create unstable air currents where high pressure and low pressure systems meet. In a big thunderstorm cloud, there are now strong upward winds and downward winds happening at the same time. These are called updrafts and downdrafts. This is the most dangerous stage of the storm, when tornadoes, hail, winds and flooding can happen. Updrafts continue to fuel the storm with warm, moist air. But, once a storm runs out of updrafts, it starts to weaken.
The answer is "a boundary between two different air masses, where cold air is retreating and warm air is advancing."
A front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.
Thunderstorms are caused by moisture and differences in air pressure. Remember that warm air rises and cold air sinks. When warm, moist air is near the ground and cold, dry air is up above, convection will create unstable air currents where high pressure and low pressure systems meet. In a big thunderstorm cloud, there are now strong upward winds and downward winds happening at the same time. These are called updrafts and downdrafts. This is the most dangerous stage of the storm, when tornadoes, hail, winds and flooding can happen. Updrafts continue to fuel the storm with warm, moist air. But, once a storm runs out of updrafts, it starts to weaken.
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What conditions are required in order for a thunderstorm to occur?
What conditions are required in order for a thunderstorm to occur?
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The answer is "moisture and differences in air pressure."
A front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.
Thunderstorms are caused by moisture and differences in air pressure. Remember that warm air rises and cold air sinks. When warm, moist air is near the ground and cold, dry air is up above, convection will create unstable air currents where high pressure and low pressure systems meet. In a big thunderstorm cloud, there are now strong upward winds and downward winds happening at the same time. These are called updrafts and downdrafts. This is the most dangerous stage of the storm, when tornadoes, hail, winds and flooding can happen. Updrafts continue to fuel the storm with warm, moist air. But, once a storm runs out of updrafts, it starts to weaken.
The answer is "moisture and differences in air pressure."
A front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.
Thunderstorms are caused by moisture and differences in air pressure. Remember that warm air rises and cold air sinks. When warm, moist air is near the ground and cold, dry air is up above, convection will create unstable air currents where high pressure and low pressure systems meet. In a big thunderstorm cloud, there are now strong upward winds and downward winds happening at the same time. These are called updrafts and downdrafts. This is the most dangerous stage of the storm, when tornadoes, hail, winds and flooding can happen. Updrafts continue to fuel the storm with warm, moist air. But, once a storm runs out of updrafts, it starts to weaken.
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What happens when a storm starts to run out of updrafts?
What happens when a storm starts to run out of updrafts?
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The answer is "the storm will weaken."t
A front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.
Thunderstorms are caused by moisture and differences in air pressure. Remember that warm air rises and cold air sinks. When warm, moist air is near the ground and cold, dry air is up above, convection will create unstable air currents where high pressure and low pressure systems meet. In a big thunderstorm cloud, there are now strong upward winds and downward winds happening at the same time. These are called updrafts and downdrafts. This is the most dangerous stage of the storm, when tornadoes, hail, winds and flooding can happen. Updrafts continue to fuel the storm with warm, moist air. But, once a storm runs out of updrafts, it starts to weaken.
The answer is "the storm will weaken."t
A front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.
Thunderstorms are caused by moisture and differences in air pressure. Remember that warm air rises and cold air sinks. When warm, moist air is near the ground and cold, dry air is up above, convection will create unstable air currents where high pressure and low pressure systems meet. In a big thunderstorm cloud, there are now strong upward winds and downward winds happening at the same time. These are called updrafts and downdrafts. This is the most dangerous stage of the storm, when tornadoes, hail, winds and flooding can happen. Updrafts continue to fuel the storm with warm, moist air. But, once a storm runs out of updrafts, it starts to weaken.
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Where do thunderstorms occur?
Where do thunderstorms occur?
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The answer is "all of these."
A front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.
Thunderstorms are caused by moisture and differences in air pressure. Remember that warm air rises and cold air sinks. When warm, moist air is near the ground and cold, dry air is up above, convection will create unstable air currents where high pressure and low pressure systems meet. In a big thunderstorm cloud, there are now strong upward winds and downward winds happening at the same time. These are called updrafts and downdrafts. This is the most dangerous stage of the storm, when tornadoes, hail, winds and flooding can happen. Updrafts continue to fuel the storm with warm, moist air. But, once a storm runs out of updrafts, it starts to weaken.
The answer is "all of these."
A front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.
Thunderstorms are caused by moisture and differences in air pressure. Remember that warm air rises and cold air sinks. When warm, moist air is near the ground and cold, dry air is up above, convection will create unstable air currents where high pressure and low pressure systems meet. In a big thunderstorm cloud, there are now strong upward winds and downward winds happening at the same time. These are called updrafts and downdrafts. This is the most dangerous stage of the storm, when tornadoes, hail, winds and flooding can happen. Updrafts continue to fuel the storm with warm, moist air. But, once a storm runs out of updrafts, it starts to weaken.
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When strong updrafts occur, what type of weather should we expect?
When strong updrafts occur, what type of weather should we expect?
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The answer is "tornadoes, hail, high winds."
A front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.
Thunderstorms are caused by moisture and differences in air pressure. Remember that warm air rises and cold air sinks. When warm, moist air is near the ground and cold, dry air is up above, convection will create unstable air currents where high pressure and low pressure systems meet. In a big thunderstorm cloud, there are now strong upward winds and downward winds happening at the same time. These are called updrafts and downdrafts. This is the most dangerous stage of the storm, when tornadoes, hail, winds and flooding can happen. Updrafts continue to fuel the storm with warm, moist air. But, once a storm runs out of updrafts, it starts to weaken.
The answer is "tornadoes, hail, high winds."
A front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.
Thunderstorms are caused by moisture and differences in air pressure. Remember that warm air rises and cold air sinks. When warm, moist air is near the ground and cold, dry air is up above, convection will create unstable air currents where high pressure and low pressure systems meet. In a big thunderstorm cloud, there are now strong upward winds and downward winds happening at the same time. These are called updrafts and downdrafts. This is the most dangerous stage of the storm, when tornadoes, hail, winds and flooding can happen. Updrafts continue to fuel the storm with warm, moist air. But, once a storm runs out of updrafts, it starts to weaken.
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How do convection currents cause thunderstorms?
How do convection currents cause thunderstorms?
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The answer is "They cause warm air to rise and cold air to sink."
A front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.
Thunderstorms are caused by moisture and differences in air pressure. Remember that warm air rises and cold air sinks. When warm, moist air is near the ground and cold, dry air is up above, convection will create unstable air currents where high pressure and low pressure systems meet. In a big thunderstorm cloud, there are now strong upward winds and downward winds happening at the same time. These are called updrafts and downdrafts. This is the most dangerous stage of the storm, when tornadoes, hail, winds and flooding can happen. Updrafts continue to fuel the storm with warm, moist air. But, once a storm runs out of updrafts, it starts to weaken.
The answer is "They cause warm air to rise and cold air to sink."
A front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.
Thunderstorms are caused by moisture and differences in air pressure. Remember that warm air rises and cold air sinks. When warm, moist air is near the ground and cold, dry air is up above, convection will create unstable air currents where high pressure and low pressure systems meet. In a big thunderstorm cloud, there are now strong upward winds and downward winds happening at the same time. These are called updrafts and downdrafts. This is the most dangerous stage of the storm, when tornadoes, hail, winds and flooding can happen. Updrafts continue to fuel the storm with warm, moist air. But, once a storm runs out of updrafts, it starts to weaken.
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What would a meteorologist be paying the MOST attention to if she were trying to predict whether a thunderstorm would occur?
What would a meteorologist be paying the MOST attention to if she were trying to predict whether a thunderstorm would occur?
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The answer is "air pressure."
A front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.
Thunderstorms are caused by moisture and differences in air pressure. Remember that warm air rises and cold air sinks. When warm, moist air is near the ground and cold, dry air is up above, convection will create unstable air currents where high pressure and low pressure systems meet. In a big thunderstorm cloud, there are now strong upward winds and downward winds happening at the same time. These are called updrafts and downdrafts. This is the most dangerous stage of the storm, when tornadoes, hail, winds and flooding can happen. Updrafts continue to fuel the storm with warm, moist air. But, once a storm runs out of updrafts, it starts to weaken.
The answer is "air pressure."
A front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.
Thunderstorms are caused by moisture and differences in air pressure. Remember that warm air rises and cold air sinks. When warm, moist air is near the ground and cold, dry air is up above, convection will create unstable air currents where high pressure and low pressure systems meet. In a big thunderstorm cloud, there are now strong upward winds and downward winds happening at the same time. These are called updrafts and downdrafts. This is the most dangerous stage of the storm, when tornadoes, hail, winds and flooding can happen. Updrafts continue to fuel the storm with warm, moist air. But, once a storm runs out of updrafts, it starts to weaken.
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Which of these factors are required to form both hurricanes and thunderstorms?
Which of these factors are required to form both hurricanes and thunderstorms?
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The answer is "winds moving towards the center of the storm and warm air rising into the clouds."
A front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.
Thunderstorms are caused by moisture and differences in air pressure. Remember that warm air rises and cold air sinks. When warm, moist air is near the ground and cold, dry air is up above, convection will create unstable air currents where high pressure and low pressure systems meet. In a big thunderstorm cloud, there are now strong upward winds and downward winds happening at the same time. These are called updrafts and downdrafts. This is the most dangerous stage of the storm, when tornadoes, hail, winds and flooding can happen. Updrafts continue to fuel the storm with warm, moist air. But, once a storm runs out of updrafts, it starts to weaken.
The answer is "winds moving towards the center of the storm and warm air rising into the clouds."
A front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.
Thunderstorms are caused by moisture and differences in air pressure. Remember that warm air rises and cold air sinks. When warm, moist air is near the ground and cold, dry air is up above, convection will create unstable air currents where high pressure and low pressure systems meet. In a big thunderstorm cloud, there are now strong upward winds and downward winds happening at the same time. These are called updrafts and downdrafts. This is the most dangerous stage of the storm, when tornadoes, hail, winds and flooding can happen. Updrafts continue to fuel the storm with warm, moist air. But, once a storm runs out of updrafts, it starts to weaken.
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Which of the following best describes when thunderstorms are MOST likely to occur?
Which of the following best describes when thunderstorms are MOST likely to occur?
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The answer is "Thunderstorms can occur year-round and at all hours. But they are most likely to happen in the spring and summer months and during the afternoon and evening hours."
A front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.
Thunderstorms are caused by moisture and differences in air pressure. Remember that warm air rises and cold air sinks. When warm, moist air is near the ground and cold, dry air is up above, convection will create unstable air currents where high pressure and low pressure systems meet. In a big thunderstorm cloud, there are now strong upward winds and downward winds happening at the same time. These are called updrafts and downdrafts. This is the most dangerous stage of the storm, when tornadoes, hail, winds and flooding can happen. Updrafts continue to fuel the storm with warm, moist air. But, once a storm runs out of updrafts, it starts to weaken.
The answer is "Thunderstorms can occur year-round and at all hours. But they are most likely to happen in the spring and summer months and during the afternoon and evening hours."
A front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.
Thunderstorms are caused by moisture and differences in air pressure. Remember that warm air rises and cold air sinks. When warm, moist air is near the ground and cold, dry air is up above, convection will create unstable air currents where high pressure and low pressure systems meet. In a big thunderstorm cloud, there are now strong upward winds and downward winds happening at the same time. These are called updrafts and downdrafts. This is the most dangerous stage of the storm, when tornadoes, hail, winds and flooding can happen. Updrafts continue to fuel the storm with warm, moist air. But, once a storm runs out of updrafts, it starts to weaken.
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What is a squall line?
What is a squall line?
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The answer is "A squall line is a group of storms arranged in a line, often accompanied by “squalls” of high wind and heavy rain."
A front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.
Thunderstorms are caused by moisture and differences in air pressure. Remember that warm air rises and cold air sinks. When warm, moist air is near the ground and cold, dry air is up above, convection will create unstable air currents where high pressure and low pressure systems meet. In a big thunderstorm cloud, there are now strong upward winds and downward winds happening at the same time. These are called updrafts and downdrafts. This is the most dangerous stage of the storm, when tornadoes, hail, winds and flooding can happen. Updrafts continue to fuel the storm with warm, moist air. But, once a storm runs out of updrafts, it starts to weaken.
The answer is "A squall line is a group of storms arranged in a line, often accompanied by “squalls” of high wind and heavy rain."
A front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.
Thunderstorms are caused by moisture and differences in air pressure. Remember that warm air rises and cold air sinks. When warm, moist air is near the ground and cold, dry air is up above, convection will create unstable air currents where high pressure and low pressure systems meet. In a big thunderstorm cloud, there are now strong upward winds and downward winds happening at the same time. These are called updrafts and downdrafts. This is the most dangerous stage of the storm, when tornadoes, hail, winds and flooding can happen. Updrafts continue to fuel the storm with warm, moist air. But, once a storm runs out of updrafts, it starts to weaken.
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