Dominican Republic: Government extends tropical storm warning due to approaching storm system July 29 /update 1

Event

The government of the Dominican Republic has issued a tropical storm warning along its southern coast on Wednesday, July 29, due to the approach of Potential Tropical Cyclone Nine. The government had already issued a warning for the northern coastline from Cabo Caucedo to the northern border with Haiti on Tuesday, July 28. As of the latest update by the National Hurricane Centre (NHC) at 14:00 (local time) on Wednesday, the storm system was bringing heavy rains to the Leeward Islands, the US and British Virgin Islands, and Puerto Rico. It was located 285 km (180 mi) south-southeast of San Juan, Puerto Rico, and heading west-northwest at a speed of 37 kph (23 mph), carrying maximum sustained winds of 75 kph (45 mph). It is forecast to reach the Dominican Republic early on Thursday, July 30, before tracking towards Cuba and the Bahamas. The storm could still strengthen into a tropical storm on Wednesday night or Thursday morning, upon which it will be named Tropical Storm Isais.

Winds of up to 97 kph (60 mph) and 150mm (6 in) of rainfall could hit parts of the Dominican Republic in the coming days, and the NHC has warned of the potential for flash flooding and mudslides. Associated disruptions to travel and business are also expected during the passing of the storm system.

Context

The Atlantic hurricane season runs from late May through to the end of November, with activity typically peaking in late August and early September. Numerous tropical storms form in the Atlantic Ocean during this period, with most affecting the Caribbean, the Gulf of Mexico, and the east coast of the United States. Although communities in the region are generally well prepared for adverse weather conditions during the hurricane season, severe storms bring a significant risk of flooding and infrastructural damage.

Advice

Individuals in areas forecast to be affected by the storm system are advised to monitor local weather reports, confirm flight reservations, adhere to instructions issued by local authorities, anticipate adverse weather and power and transportation disruptions, and remember that running water can be dangerous - 15 cm (6 in) is enough to knock over an adult - and never drive through flooded streets; floodwater may also contain wastewater and chemical products.