on September 5. On September 6, the ship African Star encountered the hurricane west of Cape Verde. Reported winds of and a minimum pressure of 1001 mbar (hPa; 29.56 inHg) confirmed the existence of the tropical cyclone. A Weather Bureau forecaster remarked that the hurricane was in a "blind spot" at the time due to its location outside of shipping lanes and Hurricane Hunter reconnaissance missions. Throughout the day, the hurricane intensified, reaching major hurricane intensity by 0000 UTC on September 7. Shortly after, a United States Air Force reconnaissance flight headed for Bermuda was diverted to observe the hurricane. The flight reported a well-defined eye measuring across and a minimum pressure of 945 mbar (hPa; 27.91 inHg), the lowest measured in relation to the hurricane. At the time, Carrie had maximum sustained winds of , equivalent to a modern-day Category 4 hurricane. Further strengthening ensued, and the hurricane peaked in intensity on September 8 with winds of . After reaching peak intensity on September 8, Carrie began to gradually weaken due to a decreasing pressure gradient caused by a trough that had cut through the Azores High. By September 11, the hurricane had degenerated into a Category 1 hurricane. A reconnaissance flight reported a minimum pressure of 984 mbar (hPa; 29.06 inHg). At the same time, Carrie began to slowly curve towards the north in response to the trough. The storm later began to slowly reintensify, reattaining major hurricane strength by 1200 UTC on September 13. The restrengthening of the subtropical ridge on September 14 caused the hurricane to quickly curve towards the northwest. National Hurricane Research Project (NHRP) observers described the hurricane as "one of the most perfectly formed hurricanes they had seen." Carrie began to steadily weaken again beginning on September 15. As it passed north of Bermuda the following day, weather radar imagery from the island indicated that the hurricane had an ill-defined structure, with its eye having expanded to in diameter. However, as it curved and accelerated eastward in response to a second trough of low pressure, Carrie maintained hurricane intensity up until September 23, when it transitioned into an extratropical cyclone. The remnant system continued eastwards until it dissipated over Ireland by 1800 UTC on September 28. Preparations, impact, and records Preparations and impact After reports confirmed the existence of a hurricane in the eastern Atlantic, the Weather Bureau warned shipping lanes in the