Tropics Awaken as Tropical Storm Dexter Forms; More Systems Under Watch

Tropical Storm Dexter Emerges as Atlantic Hurricane Season Picks Up Pace. After two months of relative calm, the Atlantic hurricane season has rapidly intensified. Late Sunday night, Tropical Storm Dexter officially formed, and the National Hurricane Center (NHC) is closely monitoring two other weather systems that may soon develop into tropical cyclones.

Main Points: Tropical Storm Dexter Emerges as Atlantic Hurricane Season Picks Up Pace

• Tropical Storm Dexter has formed in the Atlantic, 275 miles north-northwest of Bermuda.

• Sustained winds are at 45 mph; moving northeast at 15 mph, away from land.

• Dexter is expected to weaken and become a post-tropical system by Wednesday.

• Winds extend 90 miles from the center; no immediate threat to land.

• Two other systems are under observation by the National Hurricane Center (NHC).

• A disturbance off Africa’s west coast has a 50% chance of developing.

• It is moving west-northwest through the central Atlantic.

• Dry Saharan air could hinder its development.

• It may become a tropical depression later this week.

• A low-pressure system near Florida, Georgia, and the Carolinas has a 30% chance of development.

• Conditions may become favorable by midweek.

• The system could organize slowly as it moves inland.

• If named, the storm would be called Erin.

• A separate weather system is moving over the Florida Panhandle.

• Expected to approach the northern Gulf Coast by Thursday.

• Holds a 40% chance of developing into a tropical depression.

• Heavy rainfall forecasted for southeastern Louisiana, Mississippi, and Alabama.

• 3 to 5 inches of rain expected; up to 8 to 10 inches in isolated coastal areas.

• Flash flooding is the primary concern.

• Flash floods have already impacted New York, New Jersey, and Texas Hill Country.

• Fatal incidents occurred this summer due to flooding.

• Tropical systems can be dangerous even without hurricane-strength winds.

• Hurricane season typically peaks mid-August to early October.

• Forecasts suggest a slightly above-average season.

• Warm ocean temperatures and atmospheric shifts are boosting storm potential.

• Colorado State University and NOAA predict higher-than-average storm activity.

• The official hurricane season runs from June 1 to November 30.

• Three named storms occurred in June and July, but none became hurricanes.

• Activity is expected to increase significantly starting mid-August.

• Coastal residents should stay prepared and monitor official updates.

• Emergency kits and readiness plans are advised.

The Atlantic hurricane season is gaining momentum. While Tropical Storm Dexter poses no land threat, increasing activity and favorable conditions suggest a more dangerous phase is approaching. Stay alert and be prepared.

Main Developments:

• Tropical Storm Dexter is located 275 miles north-northwest of Bermuda.

• The storm has 45 mph maximum sustained winds, moving northeast at 15 mph, away from land.

• Two additional systems are under observation:

  • One disturbance off Africa’s west coast has a 50% chance of development.

  • A low-pressure area near Florida and the Carolinas has a 30% chance of development.

• The seasonal peak of hurricane activity is expected in mid-August through early October.

• Forecast models show a slightly above-average season, despite earlier lower activity.

Tropical Storm Dexter: Current Status

By Monday afternoon, Dexter had organized into a tropical storm in the open Atlantic, well away from land. The NHC reported that the storm’s tropical-storm-force winds extend up to 90 miles from the center. However, the system is not expected to gain much strength and is likely to transition into a post-tropical system by Wednesday as it continues moving northeast.

African Disturbance Shows Rising Potential

Farther east, a tropical disturbance off the African coast is drawing increased attention. Over the weekend, its chances of development climbed from 20% to 50% over the next week. The system is moving west-northwest into the central Atlantic, following a path that skirts a large Saharan dust plume, which has so far suppressed storm formation.

According to meteorologist Bryan Norcross of Fox Weather, how well this system navigates through dry air and interacts with steering patterns will determine its future. If it survives the dusty conditions, it could strengthen into a tropical depression later this week.

Southeast U.S. System Could Strengthen Midweek

Closer to the southeastern United States, forecasters are watching a low-pressure system developing off the coast of northeast Florida, Georgia, and the Carolinas. It holds a 30% chance of development within the next seven days and could move west or northwest inland. The environment may become more favorable by midweek, allowing the system to slowly organize.

If it becomes a named storm, the next in line would be Erin, following Andrea, Barry, Chantal, and Dexter.

Weather Pattern Shifting Toward Increased Activity

So far, the 2025 Atlantic hurricane season has produced three named storms—all in June and July—but none gained significant strength. Historically, the season becomes much more active in August, especially after the 10th. Warm ocean temperatures and changing atmospheric patterns typically increase storm formation in this period.

Bryan Norcross noted that mid-August onward is expected to be more favorable for tropical development, aligning with the statistical peak of hurricane season around September 10.

Gulf Coast Braces for Potential Flooding

A separate weather system moving over the Florida Panhandle is forecast to approach the northern Gulf Coast by Thursday, with a 40% chance of developing into a tropical depression. Areas like southeastern Louisiana, Mississippi, and Alabama could see heavy rainfall and flooding, regardless of whether the system gains tropical storm strength.

The National Weather Service warns of 3 to 5 inches of rain in New Orleans through Saturday, with some spots possibly receiving 8 to 10 inches, especially along the coast. While the development of a depression remains uncertain, flash flooding remains the main concern.

Flash Flooding Already Making Impact

This uptick in tropical activity comes after a series of deadly flooding events this summer. On Monday, flash floods hit New York City and New Jersey, causing two fatalities. Earlier, floods in Texas Hill Country over Independence Day claimed over 130 lives. These events highlight the growing threats posed by tropical systems, even when they don’t fully develop into hurricanes.

Comparison of tropical storm dexter hurricane

Comparison Tropical Storm Dexter (2025) vs. Tropical Storm Elsa (2021)

Season Outlook: Slightly Above Average

Researchers from Colorado State University recently adjusted their 2025 hurricane forecast, suggesting the season will be slightly less active than initially projected, yet still above the long-term average. The NOAA has also predicted a 60% chance of higher-than-average storm activity, raising the stakes for the upcoming peak months.

The Atlantic hurricane season is entering its most active phase after a relatively quiet start. With Tropical Storm Dexter already named and two additional systems on watch, the coming weeks may bring heightened tropical activity. Residents along the East and Gulf Coasts are urged to stay alert, prepare emergency kits, and monitor official forecasts from the National Hurricane Center. The Atlantic hurricane season, running from June 1 to November 30, is now accelerating. While Dexter is not a threat to land, the potential development of two other systems, along with shifting atmospheric conditions, signals a more active and dangerous phase ahead.