The low pressure system will dissipate, and there will be widespread fog as the night passes, with a gradual decrease in the chances of rain on New Year's Eve.

Arab Weather - The latest results of computer simulations and satellite images indicate that the cold air mass in the upper atmosphere has begun to gradually withdraw towards the east, causing the low pressure system to weaken and gradually dissipate (i.e. fade away) during the evening hours and New Year's Eve, which will have an impact on the ground in the form of a decline in the chances of rain in most areas. Fog is also expected to form over time from the night hours on a wide scale in the Kingdom.

Decreased chances of rain tonight and dense fog in large areas

During the night hours of Tuesday/Wednesday (New Year's Eve), the low pressure system will recede, but despite that, night temperatures will drop, making the weather generally cold in most areas, and very cold especially over the high mountainous elevations, the eastern plains and the Badia. It is expected that the chances of rain will gradually decrease and remain in the early night in random and limited parts of the south of the Kingdom.

Surface humidity levels will also rise significantly, and weather conditions will be conducive to the formation of fog in large areas of the Kingdom during the late night hours, especially the eastern plains, including the Zizia and Dabaa areas and Queen Alia International Airport. The fog will be dense and may cause a decrease or perhaps a complete absence of horizontal visibility, especially at dawn and Wednesday morning, and will lead to a decrease or perhaps a complete absence of horizontal visibility in several areas.

Cold and foggy weather on New Year's morning

Temperatures tend to rise slightly on the first day of the new year 2025 and approach their usual rates for this time of year on Wednesday. The weather will be generally cold in most areas, with fog forming in the morning hours in several parts of the Kingdom. The fog will gradually clear over time and the winds will be light and variable.

It is recommended tonight and tomorrow morning to:

• Drive with extreme caution at night due to poor horizontal visibility caused by fog in various parts of the Kingdom.
• Beware of the risk of frost formation, especially in the mountainous areas and the eastern plains, in addition to the desert.

Successive rises in temperatures until the end of the week

Experts at the Arab Weather Center indicated that the Kingdom will witness a rise in temperatures on Thursday and Friday, to be 3-5 degrees Celsius higher than their average for this time of year. The weather will be relatively cold over the high mountainous areas, while it will be pleasant in the rest of the regions and tend to be warm in the Jordan Valley and the Dead Sea. Maximum temperatures will reach 18 degrees Celsius in several regions of the Kingdom, including the eastern neighborhoods of the capital, Amman, while they will be in the mid-twenties in the Jordan Valley, the Dead Sea and Aqaba. Winds will be southeasterly, moderate in speed, and sometimes active, especially over the high mountainous areas and exposed areas.

At night, the atmosphere remains cold, with large temperature differences between day and night, reaching about 10 to 13 degrees Celsius, especially in the eastern plains and desert areas, where temperatures drop to nearly zero degrees Celsius near the Earth's surface, especially in the desert areas. This is due to several weather factors, including the short solar radiation during the day, and thus the weak amount of thermal energy acquired, and this is offset by the long night hours, which results in the Earth losing thermal energy, which is basically low.

And God knows best.