Saharan Dust To Hit GA, Lower U.S.: Here's What To Know

The South is bracing for a Saharan dust that is expected to blow through the region as soon as this weekend, potentially impacting Fourth of July festivities.

The dust, currently traveling across the Atlantic, is forecast to enter the Gulf in coming days and bring effects in Texas, Florida and other areas.

Patch on Thursday spoke with Carmen Hernandez, a meteorologist with the National Weather Service's Peachtree City office, about any possible harming effects on Georgians.

The Atlanta area will be spared as the dust travels along the Gulf over the weekend, but Hernandez said central and southern Georgia may be subjected to hazy skies. She added "nice sunsets," with a more orange appearance, could also be present.

Affected areas could potentially include Columbus and Macon, she said.

The air quality was good in Columbus and moderate in Macon on Thursday, Air Now reported. In Atlanta, the air quality is expected to be moderate through Friday.

Weekend heat indices in the upper 90s to low 100s and a possible isolated pop-up storm are the primary concern in metro Atlanta, Hernandez said.

As of Thursday, there was a 20 percent chance of rain Sunday in the metro, according to the National Weather Service.

How Does Saharan Dust Originate?

Before the dust settles across the lower portion of the U.S., it is formed over the Sahara Desert due to an air layer in the late spring, summer and early fall, according to the National Oceanic and Atmospheric Administraton in a June 2025 report. The layer can venture thousands of miles and is tracked by NOAA.

After taking shape from atmospheric ripples, the Saharan air layer moves along the southern portion of the Saharan Desert and saturates the atmosphere with massive amounts of dust, scientist Dr. Jason Dunion told NOAA.

He added the layer usually springs into action in mid-June and peaks from late June to mid-August.

The outbreaks could target the lower half of the U.S., including Florida, Central American and Texas, he said in the report.

How Can Saharan Dust Impact Human Health?

Dust storms have been linked to increased respiratory symptoms, according to the National Institutes of Health.

The heightened PM levels of Saharan dust particles can negatively affect a person's respiratory system, irritating the lungs and possibly leading to cardiovascular concerns, the NIH reported.

PM stands for particulate matter and is a blend of solid and liquid particles lingering in the air.

Fine dust particles have a PM level of 2.5, elevated enough to enter a person's respiratory system and reach the lungs, the NIH reported. When inhaled, PM2.5 particles can trigger inflammation and stress in the lungs, damaging cells.

Penetration of the particles can also worsen cardiovascular diseases, the NIH reported.

Children, older people, women who are pregnant and people who have been diagnosed with respiratory diseases can be impacted by dust particles.

Windows and doors should be kept closed during dust storms, and air purifiers can be used to remove the particles, according to the NIH.