Massive Saharan dust plume headed toward Florida. How will it affect Naples, Collier County?

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Massive Saharan dust plume headed toward Florida. How will it affect Naples, Collier County?

A massive plume of

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about 2,000 miles wide from west to east is headed for Florida.

The dust is expected to reach the Gulf Coast, including Naples and Collier County, as early as Wednesday, June 3.

Saharan dust moving across the Atlantic from Africa isn’t unusual. Activity usually ramps up in mid-June,

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, and begins to subside after mid-August.

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It helps prevent hurricanes from developing or strengthening and provides some vivid sunrises and sunsets.

Here’s what to know about the Saharan dust moving toward Southwest Florida:

Saharan dust forecast tracker

Saharan dust forecast tracker.

Saharan dust map: Plume approaching Florida, US

“We’re currently seeing a massive plume of dust moving east through the Caribbean,” said Alex DaSilva, AccuWeather lead hurricane expert, said in an email Monday afternoon.

“It’s about 2,000 miles wide from east to west, stretching from Jamaica all the way past Barbados. North to south, it’s about 750 miles, spanning from Trinidad and Tobago in the south to north of Puerto Rico.

“That gives you a sense of the scale; it’s essentially a wall of dust. While it’s not uncommon for dust to cross the Atlantic, this is one of the larger plumes we’ve seen so far this season. It’s not necessarily unusual, but definitely on the stronger side.”

“We expect it to arrive in the U.S. late in the week. Florida could see enhanced sunsets as early as Thursday, and the dust could spread into parts of the northern Gulf Coast — places like Houston, New Orleans, and Baton Rouge — by Friday into Saturday,” DaSilva said.

“While it’s not rare for this dust to travel across the Atlantic and affect the southern U.S., it usually only happens a couple of times a year. This appears to be the largest plume we’ve seen in 2025 so far.”

“It’s an expansive plume, something that is typical for this time of year,” said Fox Weather meteorologist Bob Van Dillen said via email Monday.

“It doesn’t look as deep of a layer as the models had predicted last week, but it’s still should be enough for Floridians to notice a haze in the air. Sunrises and sets should feature more of a darker red hue as well, stating Wednesday and peaking Friday/Saturday. The heaviest concentration of dust looks like Central Florida at this point. This will be the biggest push of Saharan dust into Florida so far this year.”

What can Southwest Florida expect from Saharan dust this week?

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Saharan dust moving toward Florida, U.S. 11 a.m. June 2, 2025.

Since most of the dust typically is high in the atmosphere, “it rarely causes significant air quality issues for breathing,” DaSilva said. “If the dust is really thick, it can impact surface air quality, but that’s uncommon.

“Interestingly, rain showers are expected (this week) as well. When that happens, the dust can get caught in raindrops and settle on the ground. Once it dries, it might leave a residue — brown dust on cars.”

“The front draped over South Florida causing all the storms right now (Monday afternoon) is expected to dissipate through Tuesday. The dust is forecast to move over us toward the middle to end of the week, reducing thunderstorm chances but not eliminating them. Expect murky skies and nice sunsets when the dust arrives Wednesday morning before departing Thursday evening and into Friday morning,” said Barry Baxter, meteorologist with the National Weather Service Miami, in a phone interview Monday afternoon.

Tuesday morning, the highest concentration of Saharan dust is located over Puerto Rico, said Stephen Shiveley, meteorologist with the National Weather Service Tampa Bay in a phone interview. “It’ll be heading our way over the next couple of days, but a factor for us is an upper-level low in the Gulf of America bringing tropical moisture over us. So we’ll see a lot of showers and cloud cover. The dust may be over us but it won’t be as noticeable unless there’s a break in the clouds. Early in the weekend, while there may be less dust over Southwest Florida, it may be more noticeable as the upper-level low moves out.”

Will smoke from ********* wildfires reach Florida?

The same weather conditions bringing the Saharan dust into Florida is helping push smoke from the ********* wildfires away from the Sunshine State.

“The  ********* wildfire smoke is definitely into north central Florida and the Panhandle,” Van Dillen said.

“All the storms Monday afternoon in South Florida has essentially ‘washed’ it out of the air, no worries there for smoke. It looks like the smoke hangs out through Tuesday morning until it rushes north and out; that wind shift will actually usher in the Saharan dust.

“Smoke is noticeable in north Florida now (late Monday, June 2) but not as thick as neighbors to the north in Georgia and South Carolina. Air quality alerts were posted for the poor air resulting from the smoke and ozone combining from the warm air.”

Tallahassee, central Panhandle: The smoke “is pretty high up in the atmosphere and thus at this time, does not appear it will be of a high concern,” Bowser said. “We do not suspect people will experience a significant smokey smell. A very slight haze may be seen with this, but due to how high up in the atmosphere it is, we are not expecting much in the way of significant visibility restrictions. At this time, the smoke is located across Georgia/Alabama.”

North, Northeast Florida: Smoke from the ********* wildfires was high over Northeast Florida, not at ground level, during the weekend, bringing hazy skies, Hess said. A front that moved through the area has since pulled the smoke back north.

East, Central Florida: The smoke is expected to hold just north of us, Haley said. “We may get a little smoke Monday and Tuesday in the upper levels, several thousand feet up, but the winds moving the dust over us are keeping the smoke away.”

South Florida: Smoke from the ********* wildfires aren’t expected at this time to affect South Florida, Baxter said.

West coast, Southwest Florida: Meteorologists were watching the ********* smoke over the weekend as winds brought it into North Florida. “We don’t think we’ll see the smoke down here at least in the next week,” Shiveley said.

What is Saharan dust?

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Saharan dust moving toward Florida, U.S. 11 a.m. June 2, 2025.

Known officially as the Saharan Air Layer, Saharan dust is

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that forms over the Sahara Desert in northern Africa, according to the National Weather Service.

As it moves off the west coast of Africa, it can travel across the North Atlantic, reaching Florida and the United States.

The Saharan Air Layer can be 2 to 2.5 miles thick, starting about one mile above the surface.

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When does Saharan Air Layer normally occur?

The Saharan Air Layer forms over the Sahara Desert during late spring, summer, and early fall, moving over the tropical North Atlantic every three to five days, the National Weather Service said.

Activity usually ramps up in mid-June,

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, and begins to rapidly subside after mid-August.

“During the peak *******, individual Saharan Air Layer outbreaks reach farther to the west —

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, Central America and even Texas — and cover vast areas of the Atlantic.”

How does Saharan dust affect tropical storms and hurricanes?

Three factors associated with Saharan dust

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from developing and, with storms already present, inhibit strengthening:

Warm temperatures: The Saharan Air Layer’s warmth acts to stabilize the atmosphere, which can suppress the formation of clouds.

Dry air: Tropical cyclones need moisture so the dry, dusty air associated with the Saharan Air Layer can weaken a tropical cyclone.

Strong winds: Strong winds in the Saharan Air Layer increase vertical wind shear in and around a storm.

Saharan dust brings vivid sunrises, sunsets

While Saharan dust can make the sky look hazy it can bring some stunning sunrises and sunsets.

Where there is a lot of dust — or smoke — in the atmosphere, sunrises and sunsets can appear even more yellow, orange and red than normal, according to the National Weather Service.

“A heavy load of dust in the atmosphere can enhance … leads to longer-lasting, duskier colors that cause

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Air quality from Saharan dust could pose respiratory problems for some

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by increasing the concentration of mineral dust, things like silica and quartz,” 

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, a pulmonologist with 

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 said in an email.

“These tiny particles can travel deep into the lungs and cause significant inflammation.”

The dust also tends to make the air drier, which can further irritate airways, Gurevich said. This might mean a runny nose or itchy eyes.

“But, for people with respiratory conditions, it can cause more serious symptoms or flare ups,” he said.

How is the air quality in Naples, Collier County? How can you check local conditions?

Can’t 

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?

What are air quality alerts?

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Explanation of what the air quality alert numbers mean.

Air quality alerts are indicators the air is unsafe to breathe for certain people. Alerts are triggered by a number of factors, including the detection of fine-particle pollution, which can irritate the lungs.

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This article originally appeared on Naples Daily News:

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