Atlantic Hurricane Outlook – June 1, 2025: Opening Day, But All’s Quiet… For Now
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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