Lebanon, Jordan: Adverse weather forecast across most of the region through at least Dec. 23

Adverse weather conditions are forecast across much of Jordan and Lebanon through at least Dec. 23. The Lebanon Meteorological Service has warned of a significant drop in temperatures, heavy rainfall with thunderstorms, and strong winds of up to 90 kph (56 mph), especially in the north of the country through Dec. 23. The Jordan Meteorological Department has warned of possible flooding in valleys and low-lying areas across northern Jordan. Dangerous travel conditions are likely due to wet roads. Reduced visibility is forecast in desert areas due to dust and in the mountain highlands due to fog and low clouds.

Due to the arid nature of the region and poor stormwater management in some urban areas, even minor rainfall accumulations could quickly result in episodes of flash flooding. Flooding is possible in streams and wadis (dry riverbeds). Moderate winds and dust storms may precede significant rainfall, though some areas - particularly desert areas - may experience high dust levels without rain. Landslides are possible in hilly or mountainous regions, especially where heavy rain has saturated the soil.

Authorities may issue mandatory evacuation orders for flood-prone communities over the coming days. Disruptions to electricity and telecommunications services are possible where significant winds, flooding, and/or landslides impact utility networks.

The severe weather could contribute to transport disruptions throughout the affected area. Floodwaters and debris flows could render some bridges, rail networks, or roadways impassable, impacting overland travel in and around affected areas. Traffic and commercial trucking delays might occur along regional highways. Authorities could temporarily close some low-lying routes that become inundated by floodwaters. Strong winds might also pose a hazard to high-profile vehicles.

Hazardous weather conditions might cause flight delays and cancellations at regional airports. Flooding could block regional rail lines; freight and passenger train delays and cancellations are possible in areas with heavy rainfall and potential track inundation.

Localized business disruptions may occur in low-lying areas; some businesses might not operate at full capacity because of flood damage to facilities, possible evacuations, and some employees' inability to reach work sites.