Is there a conventional name for when wind speed increases as a result of a large descending air mass?

Asked by: Alan Stewart

What is the wind that blows at a higher speed called?

Short bursts of high speed wind are termed gusts. Strong winds of intermediate duration (around one minute) are termed squalls. Long-duration winds have various names associated with their average strength, such as breeze, gale, storm, and hurricane.

What causes an increase in wind speed?

Pressure gradient is just the difference in pressure between high- and low-pressure areas. The speed of the wind is directly proportional to the pressure gradient meaning that as the change in pressure increases (i.e. pressure gradient increases) the speed of the wind also increases at that location.

What is wind convergence?

Convergence in a horizontal wind field indicates that more air is entering a given area than is leaving at that level. To compensate for the resulting “excess,” vertical motion may result: upward forcing if convergence is at low levels, or downward forcing (subsidence) if convergence is at high levels.

What is speed divergence?

Divergence occurs when a stronger wind moves away from a weaker wind or when air streams move in opposite directions.

What are the 4 types of winds?

Types of Wind – Planetary, Trade, Westerlies, Periodic & Local Winds.

What is a strong wind storm called?

A derecho (pronounced similar to “deh-REY-cho”) is a widespread, long-lived wind storm that is associated with a band of rapidly moving showers or thunderstorms.

What happens when wind speed is high?

Note: In “High Wind” conditions, small branches break off trees and loose objects are blown about. Isolated occurrences of wind damage to porches, carports, awnings, or pool enclosures. Isolated power outages may even occur. Winds considered dangerous for high profile vehicles and for boaters on area lakes.

What is the Coriolis effect wind?

Because the Earth rotates on its axis, circulating air is deflected toward the right in the Northern Hemisphere and toward the left in the Southern Hemisphere. This deflection is called the Coriolis effect.

Why is Massachusetts so windy?

A strong coastal storm continues to spin off the Carolinas, and this northeasterly airflow is influencing the southern and eastern parts of New England for a couple more days. That’s why it has been so windy too, as we are stuck between a strong high pressure center to the north and that low south.

What is divergence and convergence?

Divergence generally means two things are moving apart while convergence implies that two forces are moving together. In the world of economics, finance, and trading, divergence and convergence are terms used to describe the directional relationship of two trends, prices, or indicators.

What is mass convergence?

Mass convergence is found in areas where winds come together. As winds come together, mass builds up and therefore causes air to rise, creating an updraft. Convergence may occur due to topography or daytime heating, and can be especially strong along fronts and dry lines.

What is the effect when ITCZ forms?

It moves north in the Northern Hemisphere summer and south in the Northern Hemisphere winter. Therefore, the ITCZ is responsible for the wet and dry seasons in the tropics. The sun crosses the equator twice a year in March and September, and consequently makes for two wet seasons each year.

What are the three types of winds explain?

Type of Wind – Permanent Winds

• Trade Winds – These are permanent winds flowing from east-to-west. It flows in the Earth’s equatorial region (between 30°N and 30°S latitudes).
• Easterlies – It is a prevailing wind blowing from the east. …
• Westerlies – These are prevailing winds that flow from the west towards the east.

What is Anabatic and katabatic winds?

Anabatic Winds are upslope winds driven by warmer surface temperatures on a mountain slope than the surrounding air column. Katabatic winds are downslope winds created when the mountain surface is colder than the surrounding air and creates a down slope wind.

What is wind class 7?

Wind is the movement of air from high pressure area to low pressure areas.

How is wind named?

A wind is named after the direction from which it blows, e.g. the wind blowing from the west is called westerly.

How do you describe wind?

Some nice words to describe wind include gusty (when it starts and stops), biting (when it is very cold) and howling (when it makes a loud noise). Heavy rain is torrential, while very light, fine rain is misty and persistent rain goes on for a long time.

What are prevailing winds?

Prevailing winds are winds that blow from a single direction over a specific area of the Earth. Areas where prevailing winds meet are called convergence zones. Generally, prevailing winds blow east-west rather than north-south. This happens because Earth’s rotation generates what is known as the Coriolis effect.

What is the difference between wind and wind?

Quote from video: Wind or wind wound or wound wind is a moving stream of air. A strong wind is blowing wined means to turn or change direction the road is straight for a while and then it begins to wind.

Whats the difference between wind speed and gust?

The fundamental difference between the two is duration. A sustained wind is defined as the average wind speed over two minutes. A sudden burst in wind speed is called the wind gusts and typically lasts under 20 seconds.

What is the difference between gust and wind?

Wind is created by the difference in atmospheric pressure caused by lighter hot air and denser cold air. On the other hand, gusts are brief increases in the wind’s speed, mainly caused by the wind passing through the terrain.