Jordan | With expectations that the Kingdom will be affected by an extension of a depression, learn the difference between a depression and an extension of a depression

Arabia Weather - According to the latest weather map indicators at the “Arab Weather” Center, the Kingdom will be affected, God willing, next Monday by what is called an extension of an air depression, as it is expected, God willing, that there will be a clear drop in temperatures, with rain expected at intervals in the north and center of the Kingdom. .

But many of us sometimes wonder what the difference is between a depression and an extension of a depression, and here we explain in the weather forecast section at the Arab Weather Center the difference between the two terms in terms of the characteristics and effects that accompany them.

First, a depression: It is an area with low atmospheric pressure values relative to neighboring regions. The winds move around it in the northern hemisphere counterclockwise, and clockwise in the southern hemisphere, and when we talk about the Kingdom being affected by a depression, this means the presence of a clear center with low pressure. The pressure lines are equal and closed, and it moves in the usual manner from west to east. The depression is usually preceded by a warm air front that is at its forefront, which works to raise temperatures more than usual. Also, the depression, in terms of characteristics, is often accompanied by a cold air front in all layers of the atmosphere, so clouds form. In all layers due to the availability of moisture in all layers of the atmosphere, it is accompanied by active winds and heavy and regular rainfall, and its effect is long, sometimes lasting more than 24 hours.

Secondly, the extension of an air depression: At times, the Kingdom is affected by the extension of an air depression, and the effects associated with the extension of an air depression are usually secondary to the Kingdom due to the distance of the center of the depression. Also, weather conditions are often different, in terms of the accompanying humidity, cloud thickness, and precipitation, but this does not prevent it from being accompanied by The extension of the depression is accompanied by rain that may be heavy at times, but its effect is rapid and within smaller geographical areas. The extension of the depression is an area with relatively low pressure than neighboring areas, and the lines of equal air pressure are not closed and extend outward from the center of the depression, and the atmospheric pressure values are usually in the extension area. Greater than the atmospheric pressure values at the center of the depression, and weather conditions are almost similar to the weather conditions accompanying the depression, but less severe.