The Bahamas: Tropical storm to strengthen into hurricane July 31 /update 1

Event

Tropical Storm Isaias is forecast to strengthen into a hurricane on Friday, July 31, as it passes through the Bahamas. As of the latest update by the National Hurricane Center (NHC) at 20:00 (local time) on Thursday, July 30, Isaias was located 245 km (155 mi) east-southeast of Great Inagua Island, traveling northwest at 31 kph (20 mph) and carrying maximum sustained winds of 95 kph (60 mph). On the forecasted track, Isaias will move near the southeastern Bahamas late on Thursday, before moving near the central Bahamas on Friday, and near or over the northwestern Bahamas into Saturday, August 1. A hurricane warning has been issued for the northwestern Bahamas, including Andros Island, New Providence, Eleuthera, Abacos Islands, Berry Islands, Grand Bahamas Island, and Bimini. Tropical storm warnings remain in place for the southeastern and central Bahamas.

A dangerous storm surge is forecast, particularly in central and northwest Bahamas, as well as strong winds across the archipelago and up to 200 mm (8 in) of rainfall in the coming days. This could lead to flash flooding, landslides, and river flooding. Associated disruptions to travel and business are expected during the passing of the storm.

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.