The Arctic Oscillation Coefficient is heading towards positive values.. How will it affect the weather?

Arab Weather - Weather experts at the Arab Weather Center said that the latest outputs from computer simulation systems for monitoring atmospheric pressures over the North Pole, scientifically known as the Arctic Oscillation (AO) index, indicate a decrease in atmospheric pressure over the Arctic Circle, which means that the Arctic Oscillation Index is heading towards positivity.

Arctic Oscillation (AO) and its effects:

Experts at the Arab Weather Center pointed out that the Arctic Oscillation Coefficient is an indicator for monitoring changes in atmospheric pressure above the Arctic Circle, and that changes in this coefficient affect weather patterns in the Northern Hemisphere.

When the Arctic Oscillation is positive, pressure decreases in the Arctic and pressures increase elsewhere, enhancing weather volatility starting at high latitudes. When it is negative, pressures increase in the Arctic and decrease in the central regions, which can lead to stable weather.

How do positive Arctic Oscillation values affect weather systems for the rest of August?

Weather forecasters at the Arab Weather Center said that the movement of atmospheric pressures over the North Pole when the values are positive contributes to the undulation of the polar jet stream and its non-concentration in a specific area in the northern hemisphere. Studies indicate that the undulation of the polar jet stream contributes to the continued rush of cold air masses from the North Pole eastward towards Russia and northern Europe, and Atlantic storms become active as a result of the passage of very cold air masses of polar origin towards the warmer waters of the Atlantic Ocean.

Some cold upper basins reach lower latitudes, thus affecting southern Europe and crossing the waters of the western and central Mediterranean, causing atmospheric disturbances and heavy thunderstorms, especially in the Balkan countries. During the crossing of the upper basins, unstable weather conditions arise in Morocco, Tunisia and Algeria, accompanied by thunderstorms of varying intensity.

God knows best.

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