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At 500am AST (0900 UTC), the center of Hurricane Fiona was near latitude 18.5 North, longitude 68.6 West [and] moving toward the northwest near 8 mph (13 km/h). This general motion is expected to continue through tonight, followed by a turn toward the north-northwest on Tuesday and the north on Wednesday.
On the forecast track, the center of Fiona will move over the eastern portion of the Dominican Republic this morning and emerge over the southwestern Atlantic this afternoon. The center is forecast to pass near or to the east of the Turks and Caicos on Tuesday.
Maximum sustained winds are near 90 mph (150 km/h) with higher gusts. Some strengthening is expected during the next few days after the hurricane emerges over the southwestern Atlantic, and Fiona is forecast to become a major hurricane by Wednesday.
Hurricane-force winds extend outward up to 30 miles (45 km) from the center and tropical-storm-force winds extend outward up to 150 miles (240 km). The Punta Cana International Airport recently reported a sustained wind of 58 mph (93 km/h) and a gust of 78 mph (126 km/h)…
…Hurricane conditions are occurring in portions of the eastern Dominican Republic within the warning area, and are expected in the Turks and Caicos on Tuesday. Hurricane conditions are possible within the hurricane watch area in the Dominican Republic later today.
Tropical storm conditions will continue on portions of Puerto Rico this morning, and over portions of the Dominican Republic within the warning areas through today. Tropical storm conditions are expected in portions of the southeastern Bahamas by early Tuesday. Tropical storm conditions are possible across the watch area in the Dominican Republic today.
Fiona is forecast to produce the following rainfall:
These rains will continue to produce life-threatening and catastrophic flooding along with mudslides and landslides across Puerto Rico. Life-threatening flash and urban flooding is likely for eastern portions of the Dominican Republic.
The combination of storm surge and the tide will cause normally dry areas near the coast to be flooded by rising waters moving inland from the shoreline.
Localized coastal flooding remains possible along the southern coast of Puerto Rico…
Storm surge will raise water levels by as much as 3-5 feet above normal tide levels along the immediate coast in areas of onshore winds in the Dominican Republic.
Storm surge could raise water levels by as much as 2-4 feet above normal tide levels along the immediate coast in areas of onshore winds in the Turks and Caicos Monday night into Tuesday.
Swells generated by Fiona are affecting the Virgin Islands, Puerto Rico, the northern coast of the Dominican Republic, the Turks and Caicos Islands, and the southeastern Bahamas. These swells will continue to spread westward across the southwestern Atlantic toward the central and northwestern Bahamas and the east coast of the United States through midweek. These conditions could cause life-threatening surf and rip current conditions…
(For information about operations in the Americas, contact the GAC Houston Hub Agency Center at [email protected])
Source: Extracts from National Hurricane Center, Miami Fl, Hurricane Fiona Advisory No.20 issued at 0500am AST Mon on 19 September 2022