WASM- The Kingdom is expected to be affected by a long series of atmospheric depressions accompanied by heavy precipitation and cold to very cold weather in some periods, which will begin on Tuesday evening and the current weekend and will intensify during the middle of next week.
Cold air front and heavy thunderstorms on Tuesday evening..
The Kingdom will be affected by a "deep" cold air front on Tuesday evening accompanied by heavy thunderstorms, active winds, a significant drop in temperature, and weather disturbances. Heavy thunderstorms are expected to affect various regions of the Kingdom, including desert areas and the Dead Sea region.
Light rain on Wednesday and Thursday..
The Kingdom will be affected by a cold and humid air mass accompanying a weak atmospheric depression on Wednesday and Thursday with light and scattered rain showers in the north and center of the Kingdom. Rain showers will be moderate in intensity at times and for short periods in the north of the Kingdom and parts of its center.
Atmospheric depression at the end of the week at the forefront of a long series of atmospheric depressions..
The Kingdom will be affected by an atmospheric depression at the end of the week accompanied by heavy rain in many areas, cold weather, and active winds, which is at the forefront of a long series of strong and cold atmospheric depressions expected later in the middle of next week, resulting in very large amounts of rain and cold weather.
Peak of atmospheric depressions around mid-month..
The peak of atmospheric depressions is expected around mid-month, which is expected to cause very large amounts of heavy precipitation. This peak will occur after mid-current month coinciding with expectations of very cold weather and heavy precipitation in many areas of the Kingdom.
Decline of atmospheric depressions during the final third of the month..
Atmospheric depressions will decline during the final third of the current month with continued normal activity, with high activity expected to return later in the final days of the current month. The decline in atmospheric depression activity is considered normal in atmospheric circulation cycles, as atmospheric activity is expected to shift to central and eastern Europe and later to its southeastern parts.
Scientific Analysis..
A strong polar vortex is observed, particularly stationed in the east of the European continent, whose effect extended towards the northwest of the European continent. With the rapid return of North Atlantic storm activity, this will result in an accelerated rise in atmospheric pressure values over central and western Europe and its extension to eastern Europe, supported by dense snow cover. This causes the gradual extension of cold and polar air towards the Eastern Mediterranean basin, preceded by high activity of heavy rainfall atmospheric depressions before mid-month (before polar air arrival). Periods preceding polar air arrival are usually characterized by the formation of heavy rainfall atmospheric depressions accompanied by very large amounts of rain due to increased baroclinic activity, which causes strong air fronts and atmospheric effectiveness.
The atmospheric high in the European continent is expected to reach its peak impact around mid-month, pushing an extension of polar circulation from the east and north of Europe towards Turkey and the eastern Mediterranean, leading the series of atmospheric depressions to reach the peak of their impact and cold intensity, then show a clear decline during the middle of the final third of the current month and with the rise of atmospheric pressure over the Eastern Mediterranean region at the end of this long series.
WASM Regional Center continues to monitor the expected weather conditions during the coming period and any changes that may occur to them and the nature of these weather conditions.
