Atlantic Hurricane Outlook – June 5, 2025: A Weak Low, a Wet Southeast, and a Watchful Eye
June 5 brings continued calm in the Atlantic, with no named storms and no areas of concern. But warm sea surface temperatures and slowly shifting atmospheric conditions suggest more activity may be on the way later this month.
The fifth day of the 2025 Atlantic hurricane season begins with calm skies and no tropical activity on the horizon. While this early June quiet is typical, forecasters are closely watching for subtle atmospheric shifts that may usher in increased activity later in the month. Now is the perfect time to double-check your emergency plans while the weather remains cooperative.
Atlantic Basin: No Immediate Concerns
As of the latest National Hurricane Center (NHC) update (8 PM EDT June 4 or the upcoming 2 AM EDT June 5 outlook):
No active tropical cyclones
No areas of interest under investigation
No development expected within the next 7 days
This quiet pattern aligns with the early season lull seen in most years before conditions ramp up later in June and July.
Satellite imagery courtesy of Windy.com
Sea Surface Temperatures: Warming Trend Continues
Ocean heat—an essential ingredient for tropical storm formation—is building across the Atlantic:
Gulf of America (Mexico): Widespread low to mid-80s°F (28–30°C), running above average
Western Caribbean: Seasonally warm, primed for potential development in coming weeks
Main Development Region (MDR): Temperatures are climbing faster than usual for early June, laying a foundation for future storms
Sea surface temperature data courtesy of Windy.com
Wind Shear & Moisture: Still Mixed, Slowly Improving
Atmospheric conditions aren’t yet fully supportive of tropical formation, but change is underway:
Wind Shear: Still moderate to high in the western Caribbean and central Atlantic—strong enough to disrupt organization. Long-range models show a gradual easing expected later in June
Moisture: Mid- and lower-atmosphere humidity is rising in the Gulf and Caribbean, hinting at increasing thunderstorm potential
Wind Shear Courtesy of https://tropic.ssec.wisc.edu/
Saharan Air Layer: Strong, But Temporary Barrier
The Saharan Air Layer (SAL) remains a major suppressing force across the tropical Atlantic:
Dry, dusty air and associated wind shear prevent tropical waves from organizing
This layer is expected to weaken by mid-to-late June, removing a key obstacle to development
Saharan Air Layer data courtesy of Windy.com
Thunderstorm Activity: Typical Early Summer Patterns
No tropical cyclones—but thunderstorm activity continues in familiar places:
Florida: Scattered afternoon storms expected from daytime heating
Western Caribbean: Some disorganized convection is present but lacks structure
Off the U.S. East Coast: No significant organized convection at this time
Thunderstorm data courtesy of Windy.com
Florida Forecast – Early Summer Vibes Across the Peninsula
Expect a classic early summer day throughout Florida:
Highs: Upper 80s to low 90s°F (31–33°C) statewide
Humidity: Elevated levels bringing a muggy, tropical feel all day
Rain: Scattered afternoon thunderstorms likely, mostly brief and localized
Winds: Light and variable, with gentle breezes in many areas
Stay hydrated and be prepared for brief showers if you’re out and about this afternoon!
Radar data courtesy of Windy.com
Prep Tip of the Day: Verify Emergency Contact Information
Use this calm stretch to get communication-ready:
Update your family contact plan—make sure everyone knows who to call
Register for local emergency alerts via text or email
Bookmark vital sites like hurricanes.gov and Cat5Prep.com
Looking Ahead: Calm Now, But Stay Ready
No development is expected in the coming week—but the groundwork is being laid:
Warm waters across the basin
Easing wind shear on the horizon
Moisture and instability beginning to rise
The tropics may be quiet today, but the story of the 2025 hurricane season is just beginning. Stay informed, stay ready—and check back tomorrow for the next Cat5Prep.com update.
*As an Amazon Associate, we earn from qualifying purchases.
Atlantic Hurricane Outlook – June 4, 2025: A Flicker on the Horizon
Though no storms are active, key hurricane ingredients are aligning fast. A developing low near the Southeast U.S. and rising SSTs suggest change is coming.
The fourth day of the 2025 Atlantic hurricane season opens with quiet skies—but a subtle shift is underway. For the first time this season, the National Hurricane Center (NHC) has flagged a potential area of interest offshore the southeastern United States. While development chances remain low, it’s a reminder that conditions are evolving and the atmosphere is beginning to stir.
Atlantic Basin: A New Watch Zone Emerges
As of this morning’s Tropical Weather Outlook from the NHC:
No active tropical cyclones
One area of interest off the Southeastern U.S. coast
No tropical development expected in the next 48 hours
Low (10%) chance of development over the next 7 days
A non-tropical low pressure area is forecast to form near or offshore the Southeast U.S. coast.
If it remains offshore, it may gradually acquire subtropical or tropical characteristics while drifting northeastward at 10–15 mph.
— NHC Forecaster Reinhart, June 4, 2025
No storm is expected soon—but it’s the first official mention of potential development this season.
Satellite imagery courtesy of Windy.com
Sea Surface Temperatures: Ready for Action
Warm waters across the Atlantic basin continue to deepen—creating an ideal foundation for future storm formation:
Gulf of Mexico: Running 2–4°F above average, with pockets exceeding 86°F (30°C)
Western Caribbean: SSTs remain high, particularly around Central America and Cuba
Main Development Region (MDR): Trending warmer than normal with gradual warming expected into late June
This warm ocean water is the primary energy source for hurricanes—and it’s already in place.
Sea surface temperature data courtesy of Windy.com
Wind Shear & Moisture: Storm Barriers Continue to Erode
Atmospheric conditions are shifting in a storm-friendly direction:
Wind shear is weakening in key zones like the Gulf and Caribbean
Moisture levels are rising at both low and mid-levels of the atmosphere
Vertical instability is increasing, supporting larger, longer-lasting thunderstorms
This transition increases the likelihood that disorganized storms could become organized systems.
Wind Shear Courtesy of https://tropic.ssec.wisc.edu/
Saharan Air Layer: Still a Barrier, But Fading
A broad plume of Saharan dust remains in the central and eastern Atlantic, offering temporary protection:
Suppresses convection
Inhibits thunderstorm growth
Raises wind shear and dry air intrusion
However, models show this SAL influence weakening by mid-to-late June, removing one of the final natural inhibitors.
Saharan Air Layer data courtesy of Windy.com
Thunderstorm Activity: Early Clues
Even in the absence of tropical storms, convective activity gives us clues about what's forming:
Western Caribbean & Bay of Campeche: Disorganized clusters of thunderstorms show signs of persistent convection
Southeastern U.S. Coast: Isolated convection associated with the developing non-tropical low
While nothing is organizing yet, this pattern often precedes early-season development.
Thunderstorm data courtesy of Windy.com
Florida Forecast: Muggy Mornings, Stormy Afternoons
Expect typical summer conditions today across the state:
North Florida: Highs in the upper 80s, mostly sunny, low humidity
Central Florida: Around 90°F, with isolated thunderstorms after 2 PM
South Florida: Mid-80s, high humidity, with a greater risk of scattered PM storms
Afternoon thunderstorms are normal—but they also signal increasing moisture and instability across the region.
Forecast radar data courtesy of Windy.com
Prep Tip of the Day: Snap and Store
With one system on the radar, now’s a good time to check off a simple but essential task:
📸 Take photos of your home, car, and valuables
☁️ Back up those images to the cloud or email them to yourself
🔒 These photos may be critical for insurance documentation after a storm
Also:
Review your hurricane kit and evacuation plan
Sign up for emergency text alerts from local agencies
Bookmark trusted resources like Cat5Prep.com and hurricanes.gov
Looking Ahead: A Season Starting to Stir
It’s still early in the season, but we’re beginning to see motion on the map:
Warm water and shifting winds are laying the groundwork
The Saharan Air Layer is fading
Thunderstorm activity is creeping into critical regions
Today’s 10% chance of development is low—but it may mark the quiet season’s turning point.
We'll continue tracking changes in the Atlantic and bring you updated guidance each day.
Check back tomorrow for your next hurricane update from Cat5Prep.com.
*As an Amazon Associate, I earn from qualifying purchases.