Hurricane forecasters tracking system heading into Caribbean, along with Hurricane Fiona

Hurricane forecasters on Monday afternoon were tracking three systems, including Hurricane Fiona and a new disturbance heading toward the Caribbean.

Hurricane Fiona and the other Atlantic disturbance don't pose a threat to Louisiana. It's too early to accurately say where the Caribbean disturbance could go if it develops.

Related: 60+ nonperishable items to consider for your emergency kit

Hurricane Fiona on Monday afternoon was moving into the Atlantic after causing catastrophic flooding in Puerto Rico and the Dominican Republic. The storm earlier claimed a life in the French territory of Guadeloupe.

Here's what we know about the tropics as of 2 p.m. Monday from the National Hurricane Center.

Hurricane Fiona causes catastrophic flooding

Hurricane Fiona was moving into the Atlantic Monday afternoon and was expected to begin strengthening.

As of 1 p.m., the center of the storm was about 165 miles southeast of Grand Turk Island and was moving northwest at 9 mph.

On the forecast track, Fiona is expected to pass near or east of the Turks and Caicos on Tuesday.

It has winds of 90 mph, which means it is a strong Category 1 hurricane. It's expected to strengthen into a Category 3 storm by Wednesday, with peak winds of 125 mph.

Catastrophic flooding continues across much of Puerto Rico, where forecasters said more than 30 inches of rain could fall, leading to life-threatening flooding, mudslides and landslides. President Joe Biden has declared a state of emergency.

The storm disrupted power transmission lines Sunday, leading to "a blackout on all the island," according to the main utility company.

See the full advisory with current watches and warnings.

Disturbance heads toward Caribbean

Forecasters also are tracking a tropical wave that's several hundred miles east of the Windward Islands and is producing disorganized showers and thunderstorms.

The system is expected to reach the Caribbean Sea by the weekend, forecasters said.

Some gradual development of the system is possible during the next several days as it approaches the Windward Islands. It has a 20% chance of developing into at least a tropical depression within five days.

The shaded area on the graphic is where a storm could develop and is not a track. The National Hurricane Center releases a track when a tropical depression forms or is about to form.

The categories, in order of increasing strength, are tropical depression, tropical storm and hurricane (categories 1 through 5). Systems are named when they develop into a tropical storm. The next available name is Gaston.

Atlantic disturbance

Hurricane forecasters also are tracking a disturbance over the central Atlantic. It's moving north over the open water, and forecasters said some slow development is possible during the next couple days.

It has a 30% chance of developing into at least a tropical depression within 5 days.

It doesn't pose any immediate threat to land.

Read the full outlook.

Busiest time of the season

This is historically the busiest time of the Atlantic hurricane season.

In the last 100 years, the tropics have been the most active in August, September and October, with Sept. 10 being the peak of the season, according to federal forecasters. About 80% of the systems that have hit the Gulf Coast formed during this time, according to the National Weather Service in Slidell.

So far, there have been six named storms this season - Alex, Bonnie, Colin, Danielle, Earl and Fiona. The next available name is Gaston.

Hurricane season ends Nov. 30, but storms can form any time.

Storm categories

On the Saffir-Simpson Hurricane Wind Scale, the wind categories are:

Tropical depression: up to 38 mphTropical storm: 39 to 73 mphCategory 1 hurricane: 74 to 95 mphCategory 2 hurricane: 96 to 110 mphCategory 3 hurricane (major hurricane): 111 to 129 mphCategory 4 hurricane: 130-156 mphCategory 5 hurricane: 157 mph and higher

What to do now

Now is the time to review hurricane plans and make sure your property is ready for hurricane season.

Here are some tips from the National Weather Service for how to prepare for the season:

Put together an emergency kit. Here are 60+ nonperishable items to consider including.Check emergency equipment, such as flashlights, generators and storm shutters.Make a plan with your family or close friends and decide how you will get in touch and where you will go if there's an emergency. Here's how to decide if you should evacuate.Plan your evacuation route and have an alternate route. Here are 15 things to do before evacuating.Make a plan for your pets. Here are some tips.If you have a generator, check it and see if any maintenance needs to be done. Don't forget these important generator safety tips.Do any maintenance you've been putting off on your vehicle.Review your insurance policies.Keep your trees around your home trimmed to prevent damage from broken branches. Here's advice from gardening expert Dan Gill.Have materials in advance to board windows to protect them from flying debris.

The Associated Press contributed to this story.

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