Why is it windy in a depression?
A depression is an area of low pressure, where the air is rising. As it rises and cools, water vapour condenses to form clouds and perhaps precipitation. Consequently, the weather in a depression is often cloudy, wet and windy (with winds blowing in an anticlockwise direction around the depression).
What is depression wind?
Depression* A cyclonic disturbance in which the maximum sustained surface wind speed is between 17 and 33 knots (31 and 61 km/h). If the maximum sustained wind speed lies in the range 28 knots (52 km/h) to 33 knots (61 km/h) the system may be called a “deep depression”.
What is a deep depression weather?
A depression is an area of low pressure which moves from west to east in the northern hemisphere. Low pressure systems can be identified from a synoptic chart due to: cold fronts. warm fronts.
Why do depressions bring rain?
An area of low pressure is called a depression . Air rises in a depression so clouds and rainfall are formed. Depressions therefore bring unsettled weather and rain. Winds are normally stronger.
Why do depressions occur geography?
Depressions (low pressure)
These are areas of low pressure which form when air rises leaving low pressure on the ground. Frontal depressions form where the warm air mass (from the equator) meets the cold air mass(from the poles).
Why is the weather associated with depressions regarded as changeable?
A depression is an area that has low atmospheric pressure. Air rising causes the formation of clouds, which brings rainfall. Depressions often move eastwards across the UK, bringing changeable weather as they travel.
What can be the cause of depression?
Research suggests that depression doesn’t spring from simply having too much or too little of certain brain chemicals. Rather, there are many possible causes of depression, including faulty mood regulation by the brain, genetic vulnerability, stressful life events, medications, and medical problems.