In addition to Peter and Rose, forecasters are expecting a tropical depression to form as early as Wednesday in the far eastern Atlantic Ocean. If it were to become a tropical storm, it would be Sam.
By 8 p.m. ET Tuesday, the system in the far eastern Atlantic was several hundred miles off the southwest coast of Africa and was starting to show better signs of organizing, the center said.
As of 5 p.m., Peter was 160 miles northeast of San Juan, Puerto Rico, moving west-northwest at 8 mph. Forecasters expect its ultimate path will curve north later this week toward Bermuda and away from the Caribbean.
Peter could bring 1 to 4 inches of rain to parts of the Virgin Islands and northern portions of Haiti and the Dominican Republic, according to the National Hurricane Center.
Peter, which formed early Sunday in the central Atlantic, should quickly become a remnant low, forecasters said.
Tropical Storm Rose, located in the far eastern Atlantic, is expected to weaken back into a tropical depression. As of 5 p.m. Tuesday, Rose, located 1,000 miles off the coast of Africa, was moving northwest at 10 mph and was still clinging to tropical-storm status with 40 mph maximum sustained winds.
Including Sam, the remaining storm names for the 2021 season are Teresa, Victor and Wanda.
Should we run out of storm names, late-season storms will no longer carry baffling Greek names such as Zeta and Theta that were used last year.
The World Meteorological Organization announced in May that the Greek alphabet names were ditched for being confusing. Too many letters, such as Zeta and Theta, sounded similar. Forecasters found themselves fielding questions from the media and public about the use of Greek letters rather than about the storms themselves.
Experts have opted to use an overflow list of proper names instead. The list includes Adria, Braylen, Caridad, Deshawn, Emery, Foster, Gemma and Heath.
So far in the Atlantic hurricane season, which runs through Nov. 30, there have been 17 named storms, six hurricanes and three major hurricanes.