Atlantic Hurricane Outlook – July 17, 2025: Gulf Disturbance Brings Rain Threat, Development Chances Remain Low
A weak system in the Gulf of Mexico—Invest 93L—is bringing heavy rain and storms to the Gulf Coast. Tropical development remains unlikely, but flooding risks persist. The rest of the Atlantic basin stays quiet… for now.
The Atlantic basin remains free of named tropical cyclones today, but a weak low-pressure system—Invest 93L—continues to bring rain and thunderstorms along parts of the Gulf of Mexico coast. While the system is unlikely to develop into a named storm, the primary concern is heavy rainfall and flash flooding across coastal regions from Florida to Louisiana. The rest of the basin remains quiet, but conditions are slowly trending toward increased activity.
Atlantic Basin: Quiet But Not Completely Clear
As of this morning’s update from the National Hurricane Center (NHC):
No active tropical cyclones
One area of interest: Invest 93L
Development odds remain low—about 30% over the next 7 days
No other tropical development expected across the Atlantic basin through the week
Satellite imagery courtesy of Windy.com
Invest 93L: Soaking System Along the Gulf Coast
A disorganized low-pressure area near the northeastern Gulf continues to bring unsettled weather to parts of the Southeast U.S.:
Currently located offshore of the Florida Panhandle
Moving slowly westward toward the central Gulf Coast
Forecast models suggest inland movement into Louisiana or Mississippi by late Wednesday
Tropical development is unlikely due to land interaction and modest wind shear
Main concern:
Heavy rainfall (3–8 inches)
Localized flash flooding
Strong coastal thunderstorms and elevated rip current risk
Active weather alerts courtesy of Windy.com
Sea Surface Temperatures: Fuel Is in Place
Ocean temperatures remain high enough to support development if conditions align:
Gulf of Mexico: 86–88°F in many areas, well above seasonal norms
Western Caribbean: Warm and primed for mid-to-late season activity
Main Development Region (MDR): Gradually warming but still suppressed by dry air
Sea Surface Temperature data courtesy of Windy.com
Wind Shear and Atmospheric Conditions: Mixed Signals
Wind shear is moderate in the Gulf, which may continue to prevent storm organization
Atmospheric moisture is elevated, helping to support widespread thunderstorm activity
No organized convection in the MDR due to Saharan dry air
Relative Humidity (ECMWF) data courtesy of Windy.com
Wind Shear Courtesy of https://tropic.ssec.wisc.edu/
Saharan Air Layer: Still Suppressing the Tropics
A significant plume of dry, dusty air continues to dominate the central and eastern Atlantic:
Disrupts storm cloud development
Introduces additional wind shear
Suppresses convection from African tropical waves
This layer is expected to weaken gradually in late July.
Saharan Air Layer (Dust) data courtesy of Windy.com
Thunderstorm Activity: Gulf Coast Soaker
Florida Panhandle to Louisiana: Strong thunderstorms with heavy rain, especially along I-10 corridor
Central Florida: Scattered PM storms with high humidity and muggy conditions
Western Caribbean: Some convective clusters, but disorganized
Thunderstorm forecast (ECMWF) courtesy of Windy.com
Florida Forecast: Humid, Stormy Conditions Persist
North Florida:
Mid to upper 80s, scattered storms possible
Central Florida:Near 90°F with humid air and afternoon thunderstorms
South Florida:Upper 80s, heavy downpours possible after 2 PM
Localized flooding could occur in urban and low-lying areas.
Rainfall forecast (ECMWF) courtesy of Windy.com
Prep Tip of the Day: Stay Flood-Aware
Even weak systems like Invest 93L can cause dangerous flooding. Today’s tip:
Avoid driving on flooded roads
Review local flood zones and evacuation plans
Elevate valuables if you live in a flood-prone area
Sign up for weather alerts from your local emergency management office
Looking Ahead: A Reminder, Not a Threat
Although Invest 93L isn’t expected to strengthen significantly, it’s a good reminder that even weak systems can cause disruption. As we approach the back half of July, forecasters will continue monitoring the Gulf of Mexico and Western Caribbean, where development tends to increase.
Stay informed. Stay ready. And check back tomorrow for your daily update from Cat5Prep.com.
Atlantic Hurricane Outlook – June 18, 2025: Tropics Stay Quiet as Pacific Storms Steer Focus
The Atlantic remains storm-free on June 18, with no tropical systems expected over the next 7 days. But warming ocean temps and an active Pacific raise long-range concerns.
The Atlantic basin remains calm today, with no active tropical cyclones and no systems being monitored for development in the National Hurricane Center’s latest 2 AM EDT outlook. This early-season quiet continues, but shifting global patterns—warm oceans, dust, and Pacific activity—are fueling a cautious watchfulness.
Atlantic Basin: Clear, But Keep Watching
No Atlantic systems are active, and the seven-day forecast shows no tropical development expected this week . While mid-June calm is common, meteorologists note stronger global volatility due to cross-basin interactions and shifting climate signals.
Satellite view via Windy.com
Pacific Spotlight: Tropical Storm Erick on the Rise
Wind Speed Probability Tropical Storm Erick
All eyes are on the Eastern Pacific, where Tropical Storm Erick is rapidly strengthening—forecast to become the season’s first Pacific hurricane. Though Erick poses no threat to U.S. shores, it demonstrates the early-season dynamism that Atlantic may encounter soon.
Wind Gust Accumulation Forecast (ECMWF) via Windy.com
Sea Surface Temperatures: Heat Builds Beneath the Calm
Gulf & Western Caribbean: SSTs remain well above average (84–88 °F), providing potential fuel.
Main Development Region (MDR): Water temperatures are warming and trending warmer than early June norms, laying a foundation for development later in the season.
Sea Surface Temperature via Windy.com
Saharan Dust & Atmospheric Inhibitors
Wind Shear Courtesy of https://tropic.ssec.wisc.edu/
A large plume of Saharan dust continues to stretch across the Atlantic and into the Caribbean and Southeast U.S., suppressing tropical formation and degrading air quality.
This dust layer, combined with moderate wind shear, continues to inhibit tropical systems.
Saharan Air Layer (Dust) via Windy.com
Thunderstorm Activity: Summer Rhythm
Florida & Southeast U.S.: Expect standard afternoon thunderstorms, born from daytime heating—not tropical phenomena.
Caribbean & Atlantic: Skies remain clear, with no clusters or organic storms forming.
Air Quality Alert: Sensitive groups should note haze and dust over the Southeast.
Thunderstorm Forecast (ECMWF) via Windy.com
Florida Forecast (June 18)
Highs: Upper 80s to low 90s°F (31–33 °C)
Humidity: High, with muggy conditions
Rain: Isolated to scattered afternoon storms
Visibility: Reduced by dust haze in some regions
Winds: Light, stronger near storms
Rainfall Forecast (ECMWF) via Windy.com
Prep Tip of the Day: Monitor Dust and Air Quality
Minimize outdoor exposure if you’re sensitive to dust
Clean or replace filters in HVAC systems
Keep monitoring dust levels through local air-quality alerts
Continue hurricane planning while skies are calm
Looking Ahead: Still Quiet, But Global Trends Are Stirring
No Atlantic storms are expected this week. However:
SSTs remain elevated
Wind shear may ease gradually
Saharan dust may shift or thin
Eastern Pacific activity—like Erick—offers insight into potential future Atlantic behavior
Use this calm period to prepare. Tomorrow could bring the first tropical ripple, so stay connected to Cat5Prep for ongoing updates.
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Atlantic Hurricane Outlook – June 1, 2025: Opening Day, But All’s Quiet… For Now
June 1 marks the official start of the 2025 Atlantic hurricane season. No storms are currently active, but rising sea surface temperatures and favorable patterns suggest a potentially busy season ahead.
The Atlantic hurricane season officially begins today, June 1, and while the tropics are currently quiet, forecasters are already eyeing the environmental conditions that could lead to a very active season. For residents in hurricane-prone regions, now is the time to prepare—not relax.
Atlantic Basin: Calm Start to the Season
As of the latest update from the National Hurricane Center (NHC), there are no active tropical systems, no areas of concern, and no immediate threats expected over the next seven days.
This quiet opening is not unusual. Early June often sees little activity in the deep tropics. However, this calm is not expected to last. Sea surface temperatures are running well above average, and the atmospheric setup is trending toward conditions favorable for development later this month.
Satellite data courtesy of Windy.com
Sea Surface Temperatures: Running Hot
The Atlantic basin is notably warm for this early in the season, providing more than enough fuel for potential tropical cyclones.
Gulf of America (Mexico): 2 to 4°F above normal, with widespread areas exceeding 86°F (30°C)
Caribbean Sea: Similar temperature anomalies, especially in the western basin
Main Development Region: Continues trending above average
Historically, warmer-than-average waters correlate with more frequent and intense storms.
Sea surface temperature data courtesy of Windy.com
ENSO Neutral: La Nada Takes Over
The El Niño–Southern Oscillation (ENSO) is now in a neutral phase. With El Niño in the rearview and La Niña not yet in play, we enter what meteorologists call "La Nada"—a neutral state that often removes inhibiting influences on hurricane formation.
Decreased wind shear is expected across the Atlantic basin
A neutral ENSO often correlates with average to above-average storm development
Other patterns, like the Madden–Julian Oscillation (MJO), may become more influential later in the month
Saharan Air Layer: Dust Still in Play
The Saharan Air Layer (SAL) continues to stream across the Atlantic from Africa, bringing with it dry, dusty air that temporarily suppresses tropical development.
Inhibits cloud formation and convection
Increases atmospheric stability
Introduces vertical wind shear
The SAL typically begins to weaken later in June, removing one of the key atmospheric barriers to tropical development.
Saharan Dust SAL data courtesy of Windy.com
Eastern Pacific: Alvin Weakens
Tropical Storm Alvin, the Eastern Pacific's first named storm of the season, formed earlier this week and is now weakening.
Location: Approximately 710 miles south of Baja California
Movement: Northwest at 13 mph
Maximum Winds: 50 mph, weakening
Forecast: Expected to dissipate within 36 hours
Though Alvin poses no threat to land, its formation signals that tropical systems are beginning to stir in the broader region.
Alvin wind accumulation in Eastern Pacific data courtesy of Windy.com
Florida Forecast: Statewide Conditions Typical for June
Across the state of Florida, today's weather reflects classic early summer patterns.
North Florida: Highs in the upper 80s, lows in the mid-60s, low humidity, mostly clear skies
Central Florida: Highs near 90°F, afternoon humidity and a slight chance of thunderstorms
South Florida: Highs in the mid-80s, lows in the upper 70s, muggy with isolated afternoon storms
These are the kinds of conditions that typically precede the onset of more frequent tropical activity in late June and July.
Temperature across Florida data courtesy of Windy.com
Preparation Tips: Start Now, Not Later
With the season now officially underway, take time today to prepare while skies are still clear.
Review your family emergency plan and evacuation zone
Check and restock your hurricane kit
Confirm your insurance coverage and take property photos
Sign up for local emergency alerts and follow trusted forecast sources
Bookmark Cat5Prep.com and the National Hurricane Center
Looking Ahead
Although the season begins on a quiet note, forecasters warn that this calm is likely temporary. Record sea surface temperatures, a neutral ENSO, and easing wind shear all point to increased tropical activity as we move deeper into June.
Stay ready, stay informed, and check back daily for new updates from Cat5Prep.
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