Tropical depression may form from 'area of disturbed weather' in central Atlantic, NHC says (2024)

Though there are no tropical cyclones in the Atlantic at this time, the National Hurricane Center was tracking a system in the central Atlantic showing potential for development as it approaches the Caribbean.

As of 8 a.m. Sunday, July 28, the National Hurricane Center reported an area of disturbed weather over the central tropical Atlantic Ocean was expected to interact with an approaching tropical wave during the next several days. Environmental conditions are forecast to become conducive for some development in a day or two, and atropical depression could form around midweek while the system is near or over the northern Leeward Islands, Greater Antilles, or southwestern Atlantic Ocean.

  • Formation chance through 48 hours was low or near 0 percent.
  • Formation chance through 7 days was medium or 40 percent.

In addition, the National Hurricane Center was tracking two tropical waves in the Atlantic basin — which consists of the northern Atlantic Ocean, Caribbean Sea and Gulf of Mexico.

Track all active storms

AccuWeather forecasters said Friday (July 26) that the tropical wave that moved off the coast of Africa has a potential for development in August, although it faces a swath of dry air and Saharan dust. Both conditions make it difficult for tropical cyclones to develop and strengthen.

No tropical disturbances are expected to overcome those conditions over the next several days, according to the latest advisory from the National Hurricane Center.

When can we expect more tropical storms or hurricanes?

Tropical depression may form from 'area of disturbed weather' in central Atlantic, NHC says (1)

Activity is expected to pick up toward the end of July or first part of August as dry air, Saharan dust and wind shear diminish and ocean temperatures get even warmer.

"A lonesome tropical wave will be plowing westward through the dust this week; that system may be worth watching in the southwestern Atlantic or Gulf starting at end of next week, if anything is left of it after its trek," according to Dr. Ryan Truchelut, chief meteorologistat WeatherTiger. Truchelut works with the USA TODAY Network-Florida to provide the latest storm information Florida residents need.

Twisters meet hurricanes:The facts on tropical tornado threats | WeatherTiger

"We are approaching the point of the season (August) where we tend to see more of these systems take hold and organize into tropical depressions, storms, and even hurricanes under the right conditions," AccuWeather Lead Hurricane Expert Alex DaSilva said.

If that system is able to survive the hostile conditions as it continues westward, it may encounter more favorable conditions for tropical development near the Caribbean around the start of August," said AccuWeather Chief On-Air Meteorologist Bernie Rayno.

The tropical wave could be near the northern islands of the Caribbean, from the Leeward Islands to some of the Greater Antilles, in early August, according to AccuWeather.

Despite this period of quiet, forecasters are warning the 2024 Atlantic hurricane season is still expected to be extremely active and everyone should be prepared before a storm is on the horizon.

The peak of hurricane season runs from mid-August through mid-October. If your hurricane supplies are running low, or you haven't started an emergency kit, Florida's next sales tax holiday the end of August can help you save money.

National Hurricane Center: Don't focus only on the cone

Tropical depression may form from 'area of disturbed weather' in central Atlantic, NHC says (2)

TheNational Hurricane Center's newexperimental tropical cyclone forecast conegraphic will be coming out in mid-August, just in time for the peak period of hurricane season.

The new cone will addtropical storm and hurricane watches and warnings for interior counties in the pathof the storm. The current cone displays watches and warnings only for coastal counties.

Watches and warnings for interior counties have been provided by local National Weather Service offices. The new graphic will combine tropical storm and hurricane watches and warnings into a single graphic.

"We hope it gets people to stop fixating on less reliable tools like the Saffir-Simpson Scale. There are more accurate ways to convey actual wind impacts in your community and at your home," said National Hurricane Center Deputy Director Jamie Rhome.

"The Saffir-Simpson Scale doesn't allow you to understand what the actual impact may be where you live. The Saffir-Simpson scale tells you peak wind (associated with a tropical storm or hurricane) but it may not be that over your community.

"A Category 5 hurricane over Vero Beach doesn't mean Category 5 winds everywhere in Vero Beach. That doesn't allow you to deduce impact or threats" where you live. "People misinterpret local impacts, with some overestimating the threat and some underestimating the threat."

"Explicit watches and warnings for high winds (in your county) allows you to prepare for tropical storms or hurricanes based on where you are."

The next storm of the season will be Debby.

Florida weather radar: Track storms as they move across state

What is NOAA tracking in Atlantic basin?

Tropical depression may form from 'area of disturbed weather' in central Atlantic, NHC says (3)

Tropical disturbance: An area of disturbed weather over the central tropical Atlantic Ocean is expected to interact with an approaching tropical wave during the next several days. Environmental conditions are forecastto become conducive for some development in a day or two, and a tropical depression could form around midweek while the system is near or over the northern Leeward Islands, Greater Antilles, or southwestern Atlantic Ocean.

  • Formation chance through 48 hours is low or near 0 percent.
  • Formation chance through 7 days is medium or 40 percent.

What does the colored area on the NOAA map mean?

Tropical depression may form from 'area of disturbed weather' in central Atlantic, NHC says (4)

The hatched areas on tropical outlook maps indicate "areas where a tropical cyclone — which could be a tropical depression, tropical storm or hurricane — could develop," said National Hurricane Center Deputy Director Jamie Rhome.

The colors make it visibly clear how likely a system could develop, with yellow being a low chance, orange a medium chance and red a high chance.

The National Hurricane Center generally doesn't issue tropical advisories until a there is a named storm, but there is an exception.

"If a system is near land and there is potential for development, the National Hurricane Center won't wait before it issues advisories, even if the system hasn't become an actual storm. This gives residents time to prepare," Rhome said.

What else is NOAA tracking?

The National Hurricane Center is monitoring three tropical waves. Here's the latest update from the NHC as of  2 p.m. July 26: 

  • Tropical wave 1: A tropical wave in the eastern Atlantic is moving west at 11 to 17 mph.
  • Tropical wave 2: Another tropical wave in the eastern Atlantic is also moving west at the same speed, 11 to 17 mph.
  • Tropical wave 3: A tropical wave in the central Caribbean is moving west at 17 to 23 mph.

Who is likely to be impacted?

Tropical depression may form from 'area of disturbed weather' in central Atlantic, NHC says (5)

It's too early to tell whether the disturbance moving across the central Atlantic will impact Florida or the U.S.

Forecasters urge all residents to continuemonitoring the tropics and to always be prepared. That advice is particularly important for what is expected to be a very active hurricane season.

When is next Florida hurricane tax-free supplies holiday?

Tropical depression may form from 'area of disturbed weather' in central Atlantic, NHC says (6)

Save on hurricane supplies between Aug. 24 and Sept. 6. This will be the final tax-free holiday for 2024 when it comes to emergency supplies and it comes during the busiest period of the hurricane season.

Can't afford a generator or weeks of food? Here are the basics you should have on hand.

Eligible items included in the tax-free holidayinclude:

  • Aportable generatorused to provide light or communications or preserve food in the event of a power outage with a sales price of $3,000 or less.
  • A tarp or other flexible waterproof sheeting with a sales price of $100 or less.
  • An item normally sold as, or generally advertised as, a ground anchor system or tie-down kit with a sales price of $100 or less.
  • A smoke detector or smoke alarm with a sales price of $70 or less.
  • A fire extinguisher with a sales price of $70 or less.
  • A carbon monoxide detector with a sales price of $70 or less.
  • A nonelectric food storage cooler with a sales price of $60 or less.
  • A portable power bank with a sales price of $60 or less.
  • A gas or diesel fuel tank with a sales price of $50 or less.
  • A portable self-powered radio, two-way radio, or weather-band radio with a sales price of $50 or less.
  • A package of AA-cell, AAA-cell, C-cell, D-cell, 6-volt, or 9-volt batteries, excluding automobile and boat batteries, with a sales price of $50 or less.
  • A portable self-powered light source (powered by battery, solar, hand-crank, or gas) with a sales price of $40 or less, including: flashlights, lanterns and candles.
  • Eligible light sources and radios qualify for the exemption, even if electrical cords are included in the purchase.
  • Reusable ice (ice packs) with a sales price of $20 or less.

See full list of items, including pet and cleaning supplies, exempt from sales tax

When is the Atlantic hurricane season?

The Atlantic hurricane season runs from June 1 through Nov. 30.

When is the peak of hurricane season?

Tropical depression may form from 'area of disturbed weather' in central Atlantic, NHC says (7)

The peak of the season is Sept. 10, with the most activity happening between mid-August and mid-October, according to the Hurricane Center.

National Hurricane Center map: What are forecasters watching now?

Systems currently being monitored by the National Hurricane Center include:

Tropical depression may form from 'area of disturbed weather' in central Atlantic, NHC says (8)

Interactive map: Hurricanes, tropical storms that have passed near your city

Excessive rainfall forecast

What's next?

We will continue to update our tropical weather coverage daily. Download your local site's app to ensure you're always connected to the news. And look for ourspecial subscription offers here.

Tropical depression may form from 'area of disturbed weather' in central Atlantic, NHC says (2024)

FAQs

How does a tropical depression form? ›

A tropical depression forms when a low pressure area is accompanied by thunderstorms that produce a circular wind flow with maximum sustained winds below 39 mph. An upgrade to a tropical storm occurs when cyclonic circulation becomes more organized and maximum sustained winds gust between 39 mph and 73 mph.

What is tropical depression in weather? ›

Tropical Depression: An area of low pressure, counter-clockwise rotation of clouds, and winds to 38 mph. Tropical Storm: A low pressure area with wind speeds increasing to 39-73 mph. A storm is given a name at his point.

Which two conditions are needed for a tropical depression to form? ›

For one to form, there needs to be warm ocean water and moist, humid air in the region. When humid air is flowing upward at a zone of low pressure over warm ocean water, the water is released from the air, as creating the clouds of the storm.

How many mph do winds have to reach when a tropical depression turns into a tropical storm? ›

Florida Gov. Ron DeSantis declared a state of emergency for most of the state's counties ahead of what could be the region's first major storm of the hurricane season. A tropical depression turns into a named tropical storm once its reaches sustained winds of 39 mph.

What causes tropical disturbances? ›

Tropical disturbance

When the water vapor from the warm ocean condenses to form clouds, it releases its heat to the air. The warmed air rises and is pulled into the column of clouds. Evaporation and condensation continue, building the cloud columns higher and larger.

What stage is tropical depression? ›

They are classified as follows: Tropical Depression: A tropical cyclone with maximum sustained winds of 38 mph (33 knots) or less. Tropical Storm: A tropical cyclone with maximum sustained winds of 39 to 73 mph (34 to 63 knots). Hurricane: A tropical cyclone with maximum sustained winds of 74 mph (64 knots) or higher.

What can a tropical depression do? ›

Tropical depressions are cyclones with winds that gust at 38 miles per hour (33 knots) or less. While cyclones aren't as strong as tropical storms or hurricanes, they can bring significant amounts of rain, thunderstorms and devastating floods.

What is a depression area weather? ›

A low pressure system, also known as a depression occurs when the weather is dominated by unstable conditions. Under a depression air is rising, forming an area of low pressure at the surface. This rising air cools and condenses and helps encourage cloud formation, so the weather is often cloudy and wet.

What is a depression in weather? ›

Depression. A region of low atmospheric pressure that is usually accompanied by low clouds and precipitation. The term is also sometimes used as a reference to a Tropical Depression. Depression Storage. In hydrologic terms, the volume of water contained in natural depressions in the land surface, such as puddles.

Are twisters tornadoes? ›

Also known as twisters, tornadoes are violently spinning, funnel-shaped columns of air that stretch from the dark thunderclouds they form in all the way to the ground.

What are 5 interesting facts about hurricanes? ›

Interesting facts about hurricanes
  • Hurricanes are known by different names in different parts of the world. ...
  • Hurricanes are rated on the Saffir-Simpson Hurricane Wind Scale. ...
  • Hurricanes need warm ocean water and moist air to form. ...
  • Hurricanes can travel at speeds of up to 20 miles per hour.
May 8, 2023

What are two other names for hurricanes? ›

Once a tropical cyclone reaches maximum sustained winds of 74 miles per hour or higher, it is then classified as a hurricane, typhoon, or tropical cyclone, depending upon where the storm originates in the world. In the North Atlantic, central North Pacific, and eastern North Pacific, the term hurricane is used.

Where will hurricane Debbie hit in Florida? ›

Tropical Storm Debby is now forecast to rapidly intensify into a hurricane before it makes landfall in Florida's Big Bend region and brings potentially historic amounts of rainfall to parts of the Southeast, due to near-record warm waters in the Gulf of Mexico.

Do all tropical depressions turn into hurricanes? ›

However, not all tropical cyclones become hurricanes or typhoons. They begin as Tropical Depressions, graduate to Tropical Storms when winds reach 39 miles per hour, and become hurricanes (or typhoons) at 74 mph, at which point they are classified by levels and additional titles.

How fast is a tropical depression? ›

Tropical Depression

A tropical cyclone that has maximum sustained surface winds (one-minute average) of 38 mph (33 knots) or less.

How does a tropical depression grow and strengthen? ›

As long as the base of this weather system remains over warm water and its top is not sheared apart by high-altitude winds, it will strengthen and grow. More and more heat and water will be pumped into the air. The pressure at its core will drop further and further, sucking in wind at ever increasing speeds.

Does a tropical storm or depression come first? ›

Before the hurricane itself is formed, a tropical storm forms first as the tropical depression becomes increasingly stronger. The wind speeds at this stage rise from 39 mph to around 73 mph.

How is a hurricane formed step by step? ›

Hurricane Formation Steps
  1. Tropical Disturbance. A tropical disturbance is the first stage of hurricane development. ...
  2. Tropical Depression. The second stage of a hurricane's development is a tropical depression. ...
  3. Tropical Storm. A tropical storm is the third stage of hurricane development. ...
  4. Hurricane.

How serious is a tropical depression? ›

Tropical depressions are cyclones with winds that gust at 38 miles per hour (33 knots) or less. While cyclones aren't as strong as tropical storms or hurricanes, they can bring significant amounts of rain, thunderstorms and devastating floods.

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