Tropical Storm Teddy formed in the Atlantic Ocean on Monday morning and is the fourth active named storm in the Atlantic basin, according to the U.S. National Hurricane Center.
Forecasters said Teddy was located more than 1400 miles (2,260 kilometers) east of the Lesser Antilles. The storm has maximum sustained winds at 40 mph (65 kph). It is expected to strengthen into a hurricane in the next couple of days.
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Large swells from Teddy were forecast to reach the northeastern coast of South America and the Lesser Antilles by Wednesday, which could cause life-threatening surf and rip current conditions.
The three other active named storms are Hurricane Paulette, Tropical Depression Rene and Tropical Storm Sally. Paulette is impacting Bermuda while Sally is nearing the Gulf Coast. Rene is not expected to bring hazards to land.
Sally eyes Louisiana
Tropical storm Sally will move over the north-central Gulf of Mexico on Monday before becoming a hurricane as it heads toward southeastern Louisiana, the U.S. National Hurricane Center (NHC) said.
"Strengthening is expected over the next day or so, and Sally is forecast to become a hurricane by tonight, with additional strengthening possible before the center crosses the northern Gulf Coast," the Miami-based weather forecaster added.
The second storm in less than a month to threaten the region, Sally is forecast to strengthen on Monday and bring heavy rains and winds of up to 85 miles per hour (137 km/h).
Mississippi and Louisiana issued mandatory evacuation orders to residents of low-lying areas, and Louisiana Governor John Bel Edwards appealed for a federal disaster declaration and advised people living in Sally's path to flee.
Residents of southwest Louisiana are still clearing debris and tens of thousands of homes are without power after Hurricane Laura left a trail of destruction.
Energy companies scrambled to pull workers from offshore oil and gas production platforms. Chevron Corp, Equinor and Murphy Oil Corp shut in wells as a precaution, and refiner Phillips 66 halted processing at its Alliance refinery on the Louisiana coast.
At 7 a.m. CDT, Sally was 115 miles southeast of the mouth of the Mississippi River, packing winds of 65 miles per hour, according to the NHC.
It warned the storm's advance would slow in the next two days, dumping 8- to 16-inches (20-40 cm) on the coast and causing widespread river flooding.