Hurricane Fiona strengthened to a major hurricane over the Turks and Caicos on Tuesday morning. At 8:00 a.m. EDT on Tuesday the center of Hurricane Fiona was located at latitude 21.6°N and longitude 71.2°W which put it about 10 miles (15 km) northwest of Grand Turk. Fiona was moving toward the north-northwest at 10 m.p.h. (16 km/h). The maximum sustained wind speed was 115 m.p.h. (185 km/h) and there were wind gusts to 135 m.p.h. (220 km/h). The minimum surface pressure was 960 mb.

A Hurricane Warning was in effect for the Turks and Caicos. Tropical Storm Warnings were in effect for the Southeastern Bahamas including the Acklins, Crooked Island, Long Cay, the Inaguas, Mayaguana and the Ragged Islands.

Hurricane Fiona strengthened on Tuesday morning and it became the first Atlantic major hurricane in 2022. A circular eye with a diameter of 18 miles (30 km) was present at the center of Fiona’s circulation. The eye was surrounded by a ring of strong thunderstorms and the strongest winds were occurring in that ring of storms. Bands of showers and thunderstorms were revolving around the core of Hurricane Fiona. Storms near the core generated upper level divergence that pumped mass away from the hurricane.

Winds to hurricane force extended out 30 miles (50 km) from the center of Hurricane Fiona. Winds to tropical storm force extended out 150 miles (240 km) from the center of circulation. The Hurricane Intensity Index (HII) was 20.6. The Hurricane Size Index (HSI) was 11.5 and the Hurricane Wind Intensity Size Index (HWISI) was 32.1. Hurricane Fiona was capable of causing regional major damage.

Hurricane Fiona will move through an environment favorable for intensification during the next 24 hours. Fiona will move over water where the Sea Surface Temperatures are near 29˚C. It will move through a region where the upper level winds are weak and there will be little vertical wind shear. Hurricane Fiona is likey to intensify during the next 24 hours. Fiona could strengthen to Category 4 on the Saffir-Simpson Scale. If the inner end of a rainband wraps around the existing eye and eyewall, then an eyewall replacement cycle could cause Hurricane Fiona to weaken temporarily.

Hurricane Fiona will move around the western side of a subtropical high pressure system over the Atlantic Ocean. The high pressure system will steer Fiona toward the north during the next 24 hours. On its anticipated track Hurricane Fiona will bring strong gusty winds and locally heavy rain to the Turks and Caicos and Southeastern Bahamas on Tuesday. An upper level trough near the East Coast of the U.S. will steer Fiona toward the northeast on Wednesday. Hurricane Fiona will affect Bermuda on Thursday night. Fiona could be a major hurricane when it gets to Bermuda.