Tropical Storm Fiona threatens to flood the Caribbean Sea; Hurricane Watch Edition for Puerto Rico

  • Tropical Storm Fiona will move across the northeastern Caribbean.
  • It will produce heavy rain and strong winds in Puerto Rico and the Virgin Islands.
  • Fiona can become a hurricane when you are near Puerto Rico and the Dominican Republic.
  • It is too early to tell if this system will become a threat to the United States.

Tropical Storm Fiona is bringing heavy rain and strong winds in the northeastern Caribbean and may strengthen into a hurricane as it tracks near Puerto Rico and the Dominican Republic.

Here’s what we know about Fiona’s threats to the Caribbean and what the storm on the road could mean for the US mainland.

Latest status and forecast

He entered the center of Fiona in the northeastern Caribbean after passing over Guadeloupe. Tropical storm-strength conditions will persist in the northern Leeward Islands Saturday morning.

The storm continues to battle some unfavorable upper winds (wind shear) and dry air.

The worst rain and gusty winds occur in the middle of the Lesser Antilles now past the center because most thunderstorm activity is on the eastern side of the system due to wind shear.

On this route, Fiona will be moving near or south of the US Virgin Islands and Puerto Rico this weekend, then to Hispaniola on Sunday or Monday night. A slightly more favorable environment may allow for some intensification this weekend, and Fiona may strengthen into a hurricane as it tracks near Puerto Rico and Hispaniola (Dominican Republic and Haiti).

Thereafter, uncertainty grows due to this potential interaction with the land, but some intensification is expected once Fiona reaches the waters north of Hispaniola.


Expected path

(The shaded area in red indicates the likely path of a tropical cyclone’s center. It is important to note that forcings (particularly heavy rain, high waves, coastal flooding, and winds) with any tropical cyclone usually spreads outside its predicted path.)

c- Arab threats

A hurricane watch has been issued for Puerto Rico, which means hurricane conditions are possible within the next 48 hours.

Near-stable storm warnings are in effect for the Virgin Islands, Puerto Rico, Antigua and Barbuda, Saint Kitts and Nevis, Montserrat, Anguilla, Saba, Saint Eustatius, Saint Martin, Guadeloupe, Saint Barthelemy, Saint Martin and for parts of the Dominican Republic. Tropical storms are expected in the warning zone within 36 hours.

Tropical Storm Watches have been issued for parts of the southern coast of the Dominican Republic. This means that tropical storm conditions are possible within the next 48 hours.


Areas from the Leeward Islands to Puerto Rico to eastern Hispaniola to the Turks and Caicos Islands can see a total of 4 to 10 inches (locally higher) than Fiona. This heavy rain could cause dangerous floods and mudslides this weekend and into early next, especially over mountainous terrain. Up to 16 inches is possible, especially across eastern and southern Puerto Rico.


precipitation forecast

(This should be interpreted as an overview of where heavy rains may fall and may change based on the forecast path of a tropical cyclone. Larger amounts may occur when bands of rain stop over a period of a few hours.)

Some modest storms are likely to occur on the east-south facing beaches this weekend in Puerto Rico and the Virgin Islands and Hispaniola. In addition, rip currents and rough waves are likely.

Am I Fiona a threat from the US mainland?

The bottom line is that the mainland United States, especially from Florida to the rest of the southeast coast, should keep an eye on the outlook for now because it’s too early to tell if Fiona will eventually become a threat.

T hat because Fiona encounters the obstacles mentioned earlier, including wind shear, dry air, and a possible path on some mountainous Caribbean islands like Hispaniola.

Among the wide range of possibilities include:

It intensified sooner, thus turning north into the mid-Atlantic away from the eastern coast of the United States, similar to last week’s Hurricane Earl.

Slight strengthening over the next few days, continuing west-west and northwest, turning north later, much closer to or over the Bahamas and possibly the southeastern US later next week.

For now, the National Hurricane Center is expecting calls for Fiona to gain some strength by early next week, allowing it to gradually turn northward near Hispaniola and the Turks and Caicos Islands.

However, as often happens in hurricane season, these forecasts may change. Check back with us at for the latest updates to these forecasts in the coming days.

No matter what happens, now is a good time to make sure you have a plan ready before a hurricane hits. Information about hurricane preparedness can be found over here.

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