What happens when two different air masses?
When two different air masses come into contact, they don’t mix. They push against each other along a line called a front. When a warm air mass meets a cold air mass, the warm air rises since it is lighter. As air masses move, pushed by winds, they directly influence the weather in the regions over which they pass.
How does a frontal boundary form and how does it separate two air masses?
Lifting also occurs along frontal boundaries, which separate air masses of different density. In the case of a warm front, the warm, less dense air rises up and over the colder air ahead of the front. Again, the air cools as it rises and its moisture condenses to produce clouds and precipitation.
Which factors causes air masses to move in the United States check all that apply?
One major influence of air mass movement is the upper level winds such as the upper level winds associated with the jet stream. The jet stream wind is often referred to as a steering wind. The troughs and ridges of the jet stream will help transport cold air toward lower latitudes and warm air toward high latitudes.
Which type of weather do anticyclones bring?
Anticyclones can bring us very cold, crisp bright winter days and warm, sunny summer weather. In winter, the clear, settled conditions and light winds associated with anticyclones can lead to frost and fog.
Which type of severe weather is related to high pressure systems?
1 Answer. Low pressure systems result in unsettled weather with precipitation or storms, while high pressure brings in settled dryer weather over longer periods.
How much of water Vapour is present in air?
The percentage water vapor in surface air varies from 0.01% at -42 °C (-44 °F) to 4.24% when the dew point is 30 °C (86 °F). Approximately 99.13% of it is contained in the troposphere.
What term best describes water vapor in the air?
Terms in this set (9)
- What term best describes the water vapor in the air? Gaseous.
- What happens when the tempeture of the air cools?
- What are clouds made of?
- cumulonimbus.
- Which term best describes Cirrus clouds?
- Which term best describes Stratus clouds?
- Which term best describes Cumulous clouds?
- contrails.
Which term best describes the circulation of air and water in the atmosphere?
convection
What happens when air containing water vapor rises?
what happens when the air containing water vapor rises? water vapor is rising, expanding, cooling air will often condense into clouds because the cooler air can no longer hold as much water vapor. If rising and cooling continue, the droplets may coalesce into raindrops or snowflakes.