Dominican Republic: Adverse weather forecast across much of the country through at least Dec. 23

Adverse weather conditions are forecast across much of the Dominican Republic through at least Dec. 23. The Dominican Republic's National Office of Meteorology (ONAMET) has warned that a frontal system will move slowly away from the country over the coming days, bringing strong winds and moderate rainfall to many areas, with the most severe weather likely in northern regions and over the central mountains. Strong winds will also generate rough seas along the northern coast. Due to the possibility of flooding and landslides, weather warnings (the highest level on a two-tier scale) have been issued for Espaillat, Hermanas Mirabal, Maria Trinidad Sanchez, and Puerto Plata provinces. Weather alerts are in place for Dajabon, Duarte, Hato Mayor, La Vega, Monsenor Nouel, Monte Cristi, Monte Plata, Samana, Sanchez Ramirez, Santiago, and Valverde provinces.

Sustained heavy rainfall could trigger flooding in low-lying communities near rivers, streams, and creeks. Urban flooding is also possible in developed areas with easily overwhelmed stormwater drainage systems. Sites located downstream from large reservoirs or rivers may be subject to flash flooding after relatively short periods of intense rainfall. Landslides are possible in hilly or mountainous areas, especially where heavy rainfall has saturated the soil.

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

Floodwaters and debris flows may render some bridges, rail networks, or roadways impassable, impacting overland travel in and around affected areas. Ponding on road surfaces could cause hazardous driving conditions on regional highways. Authorities could temporarily close some low-lying routes that become inundated by floodwaters.

Severe weather could also trigger flight delays and cancellations at regional airports. If strong winds trigger hazardous sea conditions, authorities may temporarily suspend port operations or close beach fronts. Flooding could block regional rail lines; freight and passenger train delays and cancellations are likely in areas that see 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.