In the summer... a huge polar air mass affects the North Atlantic Ocean, bringing (heavy rain and snow)

<p style=";text-align:left;direction:ltr"><strong>Arab Weather -</strong> While most countries in the northern hemisphere are experiencing summer weather, and although we are still in the summer season, whether from an astronomical or even meteorological perspective, the latest advanced computer outputs at the Arab Weather Regional Center show the rush of a very cold polar air mass with a huge geographical extension towards the waters of the North Atlantic Ocean, accompanied by negative temperatures and very cold weather with snowfall in some areas.</p><p style=";text-align:left;direction:ltr"></p><h2 style=";text-align:left;direction:ltr"> <strong>A very cold polar air mass dominates the North Atlantic Ocean.</strong></h2><p style=";text-align:left;direction:ltr"></p><p style=";text-align:left;direction:ltr"> In detail, weather experts at the Arab Weather Regional Center said that a polar air mass of very cold origin rushed from the Arctic Circle towards the North Atlantic Ocean, causing the formation of a deep low pressure (Atlantic storm) over the water surface with very low air pressure values reaching 969 millibars. The storm is accompanied by very high winds and dense bands of heavy rain clouds accompanied by a cold air front that is currently affecting Iceland with heavy rain and possibly snowfall in some areas.</p><p style=";text-align:left;direction:ltr"></p><h2 style=";text-align:left;direction:ltr"> <strong>The storm is heading west and the air front is crossing several European countries</strong></h2><p style=";text-align:left;direction:ltr"></p><p style=";text-align:left;direction:ltr"> According to computer modelling, the Atlantic storm is moving slowly westwards, and the cold front will cross Ireland, the UK and Norway during the hours of tonight and tomorrow, Thursday, accompanied by heavy rain clouds and strong winds exceeding 100 km/h, which will disrupt the waves and maritime traffic.</p><p style=";text-align:left;direction:ltr"></p><h2 style=";text-align:left;direction:ltr"> <strong>Atlantic storm continues over Atlantic waters over the weekend</strong></h2><p style=";text-align:left;direction:ltr"></p><p style=";text-align:left;direction:ltr"> God willing, the Atlantic storm is expected to continue to exist over the waters of the North Atlantic. Despite this, the atmospheric pressure rises slightly in the center of the storm, but it continues with its strong winds, heavy rains, and snow in Iceland, in addition to the countries located in the northwest of the European continent.</p><p style=";text-align:left;direction:ltr"></p><h2 style=";text-align:left;direction:ltr"> <strong>Arctic positivity and its relationship to Atlantic storm activity</strong></h2><p style=";text-align:left;direction:ltr"></p><p style=";text-align:left;direction:ltr"> Weather forecasters at the Arab Weather Center said that the movement of atmospheric pressure over the North Pole when the AO index is positive means that the atmospheric pressure is low at the North Pole but higher than average at mid-latitudes (about 45 degrees north). This causes very strong westerly jet winds that trap cold air in distant areas, thus concentrating polar air in high latitudes and activating Atlantic storms as a result of the passage of very cold air masses of polar origin towards the warmer Atlantic waters.</p><p style=";text-align:left;direction:ltr"></p><p style=";text-align:left;direction:ltr"> God knows best.</p><p style=";text-align:left;direction:ltr"></p><hr /><p style=";text-align:left;direction:ltr"></p><p style=";text-align:left;direction:ltr"> <strong>Read also:</strong></p><p style=";text-align:left;direction:ltr"> <a href="https://www.arabiaweather.com/ar/content/%D9%83%D9%8A%D9%81-%D9%86%D8%B9... do we know that the climate is changing?</strong></a></p><p style=";text-align:left;direction:ltr"> <a href="https://www.arabiaweather.com/ar/content/%D8%AA%D9%82%D8%B1%D9%8A%D8%B1-... Report | Severe rainstorms are spreading across Europe due to climate change</strong></a></p>