1. At the leading edge of thunderstorms.
2. In the vicinity of tropical cyclones.
3. Along jet streams.
4. In mountainous terrain.
Wind shear is defined as a change in wind speed and/or direction over a relatively short distance in the atmosphere. It can be a dangerous condition for aircraft, as it can cause the aircraft to lose lift and possibly crash.
There are four main types of wind shear:
1. Vertical wind shear – This is when there is a change in wind speed and/or direction with height. It is most commonly found at the leading edge of thunderstorms, where the wind speed can increase by up to 50 knots in a matter of seconds.
2. Horizontal wind shear – This is when there is a change in wind speed and/or direction over a horizontal distance. It is most commonly found along jet streams, where the wind speed can increase or decrease by up to 30 knots over a distance of just a few kilometres.
3. Temporal wind shear – This is when there is a change in wind speed and/or direction over time. It is most commonly found in the vicinity of tropical cyclones, where the wind speed can increase or decrease by up to 50 knots over a period of several hours.
4. Spatial wind shear – This is when there is a change in wind speed and/or direction over space. It is most commonly found in mountainous terrain, where the wind speed can vary by up to 30 knots over a distance of just a few kilometres.
Other related questions:
Q: Where is wind shear most common?
A: There is no definitive answer to this question as wind shear can occur in any location where there are differing wind speeds or directions. However, some areas that are particularly prone to wind shear include mountainous regions, areas near large bodies of water, and areas where cold and warm air masses collide.
Q: When should I expect a hazardous wind shear?
A: Hazardous wind shear can occur at any time, but is most likely to occur during thunderstorms.
Q: Which kind of wind shear is most hazardous?
A: There is no definitive answer to this question as different pilots and aviation experts may have different opinions. Some may argue that low-level wind shear is more dangerous because it can more easily disrupt a takeoff or landing. Others may say that mid-level wind shear is more dangerous because it can cause a more sudden and severe change in wind speed and direction, which can lead to turbulence and other hazards. Ultimately, it is up to the individual pilot to assess the risks of any given wind shear situation and decide whether or not to proceed.