Atlantic Hurricane Outlook – June 2, 2025: A Quiet Morning, But Don’t Get Comfortable

June 2, 2025 Atlantic hurricane update: Calm skies for now, but unusually warm sea surface temperatures and shifting atmospheric conditions could spark activity later this month. Stay prepared with the latest forecasts and safety tips.

The second day of the 2025 Atlantic hurricane season begins under calm skies, but seasoned forecasters know better than to be lulled by the stillness. With sea temperatures running hot and atmospheric patterns shifting toward favorability, this quiet start may not last long.

Atlantic Basin: All Clear—For Now

As of this morning’s update from the National Hurricane Center (NHC), there are no active tropical cyclones, no areas of interest, and no tropical development expected over the next seven days.

This early-season lull is common in the first half of June, but warm waters and waning atmospheric inhibitors are quietly setting the stage for activity later this month.

Satellite data courtesy of Windy.com

Ocean Heat: The Hidden Fuel Source

Sea surface temperatures (SSTs) across the Atlantic basin are unusually high for this time of year—creating the potential for rapid storm intensification when development does occur:

  • Gulf of America (Mexico): Running 2–4°F above average, with large swaths above 86°F (30°C)

  • Caribbean Sea: Above-average temperatures, especially in the western basin

  • Main Development Region (MDR): Continuing to trend hot

Warm water is the engine that powers tropical cyclones, and the basin is already running well above operating temperature.

Sea surface temperature (SST) data courtesy of Windy.com

ENSO Status: La Nada Means No Safety Net

The El Niño–Southern Oscillation (ENSO) remains in a neutral phase, a state meteorologists often refer to as "La Nada."

  • El Niño has ended, removing the high wind shear that often suppresses Atlantic hurricanes

  • La Niña has not yet begun, but conditions may be trending in that direction later this summer

  • Neutral ENSO removes large-scale inhibitors, allowing the Atlantic to operate unchecked

Historically, neutral ENSO years correlate with average to above-average tropical storm activity.

Wind data courtesy of Windy.com

Saharan Air Layer: Dust Still Offers a Buffer—for Now

The Saharan Air Layer (SAL) continues to stretch across the tropical Atlantic, providing a temporary shield against storm formation:

  • Introduces dry, stable air into the atmosphere

  • Inhibits convection and cloud development

  • Increases wind shear in the central Atlantic

The SAL typically weakens by late June, making it easier for tropical waves to grow and organize.

Saharan Air Layer (SAL) dust data courtesy of Windy.com

Florida Forecast: A Summer Day with a Side of Humidity

Today’s conditions across Florida reflect typical early-June weather:

  • North Florida: Highs in the upper 80s, low humidity, and mostly sunny skies

  • Central Florida: Highs around 90°F, building humidity, and isolated afternoon storms

  • South Florida: Warm and muggy with highs in the mid-80s and a greater chance of scattered storms after 2 PM

It’s a classic Florida day—but the kind that often precedes the real tropical drama in July and August.

Weather radar forecast data courtesy of Windy.com

Prep Tips: Take Advantage of the Calm

With no storms on the map, today is a perfect day to prepare:

Looking Ahead: Eyes on the Tropics

We remain in a short-term window of calm, but all indicators suggest that activity will ramp up in the coming weeks. Record-breaking sea surface temperatures and favorable upper-atmospheric trends point to early-season development potential later in June.

Stay alert. Stay ready. And check back tomorrow for your next update from Cat5Prep.

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Atlantic Hurricane Outlook – May 30, 2025: The Calm Before the Surge

Tropical Storm Alvin has formed in the Eastern Pacific, signaling the start of the 2025 season. While the Atlantic remains quiet, activity is brewing in the tropics. See SST, SAL, and EFI maps to track what's coming.

As we approach the official start of the Atlantic hurricane season on June 1, the Atlantic basin remains tranquil. The National Hurricane Center (NHC) reports no active tropical systems or significant disturbances across the Atlantic Ocean, Caribbean Sea, or Gulf of Mexico.

However, this period of calm may be short-lived. Environmental conditions—such as record-warm sea surface temperatures and a neutral El Niño–Southern Oscillation (ENSO) phase—are aligning to potentially fuel an active hurricane season.

Eastern Pacific Activity: Tropical Storm Alvin Forms

While the Atlantic remains quiet, the Eastern Pacific has seen its first named storm of the 2025 season: Tropical Storm Alvin.

  • Location: Approximately 565 miles south-southeast of the southern tip of Mexico’s Baja California Peninsula

  • Movement: Northwest at 12 mph

  • Maximum Sustained Winds: 60 mph

  • Forecast: Alvin is expected to strengthen through early Friday but is anticipated to weaken by late Friday as it encounters cooler waters
    (Associated Press source)

Although Alvin poses no direct threat to land, its formation indicates that tropical activity is beginning in the Pacific.

Sea Surface Temperatures: Fuel for Future Storms

The Atlantic's sea surface temperatures (SSTs) are notably warm, providing ample energy for potential storm development:

  • Gulf of Mexico and Caribbean Sea: SSTs are running 2–4°F above average, with some areas exceeding 86°F (30°C)

  • North Atlantic: Experiencing its third-warmest May on record

These elevated temperatures are conducive to tropical cyclone formation and intensification.

Saharan Dust: A Temporary Inhibitor

The Saharan Air Layer (SAL) continues to transport dry, dusty air across the Atlantic, suppressing tropical development by:

  • Drying out the mid-level atmosphere

  • Increasing vertical wind shear

  • Inhibiting cloud formation

This dust presence is expected to diminish in the coming weeks, potentially allowing for increased tropical activity as the season progresses.

Preparation Tips: Stay Ready

With the Atlantic hurricane season imminent, it's crucial to visit our Prep Blog and:

  • Review Emergency Plans: Ensure evacuation routes and communication plans are up to date

  • Check Emergency Kits: Stock up on essentials like water, non-perishable food, medications, and batteries

  • Stay Informed: Monitor updates from the NHC and local weather services

Looking Ahead

While the Atlantic remains calm for now, the formation of Tropical Storm Alvin in the Pacific underscores the importance of vigilance. As environmental conditions become more favorable, the likelihood of tropical development in the Atlantic increases.

Stay prepared and stay informed.

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