Updated 19‑10‑2026
WASM — A regional heavy rainfall event is expected to begin at the end of the week across parts of the Levant and northwestern Saudi Arabia, becoming intense and wide‑ranging next week with high risk of a regional flash‑flood wave.
Highly moist and strongly disturbed equatorial waves from the Arabian Sea will deepen toward the Arabian Peninsula starting at the end of the week, coinciding with approaching weather systems toward the end of the month. This will lead to a regional, heavy rainfall event.
The detailed seasonal weather bulletin for the Arab region (2026–2027) has been issued.
Initial Details of the Regional Rainfall Event
The rainfall event begins at the end of the week across wide parts of western Saudi Arabia, the Hail region, western Al‑Qassim, Al‑Jawf, and parts of the Northern Borders, extending toward Iraq and the Levant—especially central and southern Syria, including parts of Damascus and northeastern Jordan.
The rainfall intensifies significantly by mid and late next week, becoming heavy and covering large areas of Iraq, Kuwait, northern Saudi Arabia, its western and northeastern regions, north‑central areas, and most of the Levant.
Flash‑Flood Risk
The WASM Regional Center is monitoring a regional rainfall event beginning at the end of the week and intensifying next week, affecting wide areas of the Arabian Peninsula, Saudi Arabia, the Levant, Iraq, and northern Egypt.
This event is expected to produce a regional flash‑flood wave, especially next week, toward the end of the month, and into early November. Detailed updates will be issued progressively.
Saudi Arabia, the Gulf, and the Arabian Peninsula
Weather stabilizes temporarily in northwestern Saudi Arabia but becomes unsettled again toward the end of the week as a regional rainfall event approaches.
The event begins at the end of the week over northwestern Saudi Arabia, Iraq, parts of the Levant, and surrounding areas, then intensifies significantly during the last week of the month and expands over wide regions.
Heavy thunderstorms will fall at times over the highlands of Makkah, Taif, Al‑Baha, Jazan, Asir, and surrounding areas. The event strengthens toward the end of next week as part of the regional rainfall system.
The regional rainfall event becomes heavy and widespread by mid and late next week.
Levant
Cold weather dominates in the coming days, followed by a temperature rise at the end of the week. A heavy regional rainfall event is being monitored, beginning at the end of the week and intensifying significantly next week, with high risk of new and strong regional flash floods.
Jordan
Cold, near‑winter conditions prevail, especially at night. A heavy regional rainfall event will affect the country starting at the end of the week from eastern and northeastern areas, extending at times to other regions. It expands significantly by mid and late next week, becoming intense with high flash‑flood risk. (Details to follow.)
Syria
Cold weather overall, with temperatures rising gradually in the coming days. Thunderstorm showers will fall in limited areas.
A regional rainfall event will affect Syria, beginning at the end of the week over southern, central, and eastern regions, then expanding significantly and becoming intense by mid and late next week and toward the end of the month. (Details to follow.)
Palestine
Cool daytime weather and cold, near‑winter nights. Temperatures rise at the end of the week ahead of a strong rainfall event expected to affect the region by mid and late next week. Detailed updates will follow.
Lebanon
Cold, near‑winter conditions in the mountains with limited showers, followed by a temperature rise at the end of the week.
A rainfall event begins at the end of the week in some areas, then intensifies and becomes heavy next week and toward the end of the month. Details will follow.
Iraq
Weather stabilizes temporarily, then becomes unsettled again in various regions by mid and late week as a precursor to a regional rainfall event.
Iraq will be affected by a heavy regional rainfall event beginning at the end of the week, intensifying next week and becoming very heavy.
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