Atlantic Hurricane Outlook – September 11, 2025
On September 11, the Atlantic basin remains storm-free with no active cyclones. A tropical wave emerging off the coast of Africa has been given a 30% chance of development over the next 7 days, though environmental conditions such as wind shear, dry air, and Saharan dust remain unfavorable. The Gulf of Mexico and Florida stay calm, experiencing only typical late-summer thunderstorms.
Atlantic remains calm; weak tropical wave off Africa flagged with low chance (30%) of development over 7 days
Atlantic Basin Overview
No Active Tropical Cyclones
The Atlantic basin, including the Caribbean Sea and Gulf of Mexico, currently has no active tropical storms, hurricanes, or depressions. The NHC outlook confirms no formation expected in the near term.Tropical Wave Off Africa
A tropical wave is forecast to emerge offshore of West Africa by Friday. It will travel west to west-northwest at about 15 mph, over the eastern and central tropical Atlantic. Although conditions may allow for some gradual development, the NHC gives this wave a low chance (near 0%) over the next 48 hours, increasing to 30% over the next 7 days.
Environmental Conditions
Sea Surface Temperatures (SSTs): Warm in the Gulf and Caribbean (29–31 °C), supportive for storm formation there—but in the eastern tropical Atlantic, SSTs are marginal or just adequate for potential development.
Wind Shear: Moderate to high shear persists across much of the Atlantic, making rapid development unlikely.
Dry Air & Saharan Air Layer (SAL): Dry mid-level air and SAL remain strong headwinds for storm formation, especially for any tropical waves nearing the eastern Atlantic.
Gulf of America (Mexico) & Caribbean
Conditions remain quiet and stable. Only routine afternoon thunderstorms are expected along coastal areas, with no tropical system showing signs of organization.
Florida & Southeast U.S. Forecast
Florida continues in its typical early-September weather pattern—hot, humid, and marked by scattered afternoon thunderstorms. With no active systems in the Atlantic, Gulf, or nearby, there are no coastal or tropical threats expected in the short term. Surf and marine conditions are generally benign.
Rain forecast visualization courtesy of Windy.com
Summary
Atlantic is quiet with no active tropical storms.
Weak tropical wave off Africa has ~30% chance of development in 7 days; 0% in the next 48 hours.
Environmental factors (SSTs, shear, dry air/SAL) remain mostly unfavorable.
Gulf and Florida remain calm with routine summer convection.
TL;DR – September 11 Snapshot
No active storms in the Atlantic.
Wave off Africa has low but nonzero chance (30%) of forming in the coming days.
Hostile environment limits quick growth.
Florida and Gulf: quiet, typical late-summer weather.
Atlantic Hurricane Outlook – September 1, 2025
On September 1, the Atlantic remains storm-free with no active cyclones. A tropical wave emerging off the coast of Africa carries a 40% chance of development over the next 7 days. While environmental conditions—wind shear, dry air, and Saharan dust—are suppressing rapid growth, the wave will be monitored closely. Florida and the Gulf of Mexico remain quiet, experiencing only typical early-September thunderstorms.
TLDR Version: Click Here
Atlantic remains quiet; tropical wave off Africa shows rising potential (40% over 7 days)
Atlantic Basin Overview
No Active Storms
There are currently no active tropical cyclones in the Atlantic basin—the first tranquil period we've seen since the wake of Fernand and Erin.Emerging Tropical Wave Off Africa
A new tropical wave has emerged off the West Coast of Africa near Guinea-Bissau. Presently disorganized, the NHC assigns it a 0% chance of development in the next 48 hours, but the probability rises to about 40% over the next 7 days. This system will be closely monitored as it moves west across the tropical Atlantic.
Environmental Conditions
Sea Surface Temperatures (SSTs): Remain warm in the Gulf and Caribbean (29–31 °C), while the open Atlantic heat content diminishes northward.
Wind Shear: Elevated shear across much of the basin continues to suppress storm formation.
Mid-Level Humidity & SAL (Saharan Air Layer): Dry air and SAL dust are widespread, inhibiting significant convection and limiting the strength of the new wave emerging off Africa.
Gulf of America & Caribbean
The Gulf remains stable and quiet, under the influence of high pressure. Only routine afternoon sea-breeze thunderstorms are expected—no tropical threats are present.
Florida & Southeast U.S. Forecast
Florida continues in its trademark late-August/early-September pattern: hot, humid, with scattered afternoon thunderstorms. With no active systems nearby, no coastal or tropical threats are expected this week.
Rain forecast visualization courtesy of Windy.com
Summary
No storms are currently active in the Atlantic basin.
A tropical wave off Africa is being monitored, with a 40% chance of developing within 7 days.
Environmental factors—including cool SSTs, strong shear, dry air, and SAL—are suppressing tropical development.
Gulf and Florida remain quiet, with only standard summertime weather patterns in play.
TL;DR – September 1 Snapshot
Atlantic is fully quiet; no active storms.
Tropical wave off Africa now has 40% 7-day development odds.
Hostile conditions in place, limiting immediate storm formation.
Florida and Gulf remain calm, aside from typical daily thunderstorms.
Atlantic Hurricane Outlook – August 31, 2025
On August 31, the Atlantic remains storm-free following the dissipation of Fernand and Erin’s exit. The only feature of interest is a tropical wave moving off Africa, with a low 30% development chance over the next 7 days. Environmental conditions—wind shear, dry air, and Saharan dust—continue to limit storm formation. Florida and the Gulf remain calm aside from typical summer storms.
TLDR Version: Click Here
Atlantic basin remains quiet; a weak wave off Africa shows low (30%) development odds
Atlantic Basin Overview
No Active Storms
There are currently no active tropical cyclones in the Atlantic basin. The calm continues following Fernand’s dissipation and the end of Erin’s impacts.Tropical Wave Near Africa
A tropical wave is forecast to emerge off the west coast of Africa, and the NHC assigns it a low – but not negligible – chance of development: 0% over the next 2 days, increasing to 30% over the next 3 to 7 days.
Environmental Conditions
Sea Surface Temperatures (SSTs): Warm in the Caribbean and Gulf (~29–31 °C), but less favorable conditions in much of the open Atlantic.
Wind Shear: Continues to be elevated across large swaths of the basin, discouraging storm formation.
Mid-Level Humidity & SAL: Dry air and Saharan dust (SAL) remain prevalent, further suppressing convective activity.
Gulf of Mexico & Caribbean
The Gulf remains quiet and stable, dominated by high pressure. Only routine afternoon thunderstorms are occurring along the coasts—no tropical development is expected.
Florida & Southeast U.S. Forecast
Florida continues in its late-August pattern—hot, humid, with scattered afternoon thunderstorms. No tropical threats are present.
Beaches along the Atlantic coast are beginning to calm. With no new swells incoming, rip currents and surf conditions are generally improving, though caution remains prudent in areas still unsettled from earlier systems.
Rain forecast visualization courtesy of Windy.com
Summary
Atlantic basin is currently calm, with no tropical storms or hurricanes active.
A new tropical wave off Africa carries low (30%) development odds over the next week.
Environmental factors (cooler SSTs, shear, dry air, and SAL) continue to limit development potential.
Gulf and Florida remain storm-free, apart from the usual summer thunderstorms.
TL;DR – August 31 Snapshot
The Atlantic is quiet and free of active storms.
A wave off Africa has low (30%) chance of development by next week.
Environmental conditions remain unfavorable for new formations.
Florida and Gulf remain calm with only routine seasonal storms.
