US EditionTropics Impact: Here’s when the First Saharan Dust Plume Is Set to Arrive in Central Florida
- A vast Saharan dust plume about 2,000 miles wide is arriving this week over the Caribbean, Florida, and parts of the southeastern U.S., creating hazy skies.
- Waves of low pressure pick up dust from the Sahara Desert and carry it across the Atlantic Ocean in a phenomenon known as the Saharan Air Layer.
- The dust forms clouds between 5,000 and 20,000 feet high, may deposit dry residue after rain, and is typical for its strongest activity during June and July.
- Most of the dust remains high in the atmosphere causing little breathing trouble, though combined smoke and dust can worsen air quality for sensitive individuals, as Dr. Samuel Gurevich noted.
- The dust helps suppress tropical storm formation and forecasters use its patterns to improve hurricane forecasts for the 2025 season, which NOAA predicts will have above-average activity.
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Saharan dust: what Floridians should know
FPREN | By Irene Sans The first large plume of Saharan dust is set to arrive in Florida. These tiny particles travel thousands of miles through the Saharan Air Layer (SAL), which is located between half and 3.5 miles from the surface. Sahara dust has been found in virtually all parts of the globe—even atop glaciers at or near both poles. On average, a new plume or layer arrives in the Western Hemisphere about once a week or every other week, but…
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