TNW Hurricane Operations Bulletin

Issued: Wednesday, August 6, 2025 • 5:00 AM EDT

Prepared by: Todd Nardone, Chief of Hurricane Operations, TNW News LLC

Contributing: Rachel Nardone, VP of Weather Operations · TNW Breaking News Desk

TROPICS UPDATE: Tropical Storm Dexter & Areas for Atlantic Development

Tropical Storm Dexter (Advisory #10)

As of 5:00 AM AST / 9:00 UTC Wednesday August 6, the NHC reports:

Location: 39.4° N, 59.9° W — approximately 405 miles SSE of Halifax, Nova Scotia

Movement: East-northeast at 13 mph (20 km/h)

Sustained Winds: 45 mph (75 km/h)

Minimum Pressure: 1003 mb

Forecast: Dexter is expected to undergo a brief period of strengthening before transitioning to a post-tropical cyclone later this week

Wikipedia

+15

National Hurricane Center

+15

New York Post

+15

NOAA / NESDIS / STAR website

AP News

+2

Houston Chronicle

+2

.

No coastal watches or warnings are in effect and the storm poses no threat to the United States

National Hurricane Center

.

Atlantic Areas to Watch

Off the Southeast U.S. Coast

A surface trough may develop into a weak tropical low by Friday or the weekend.

Formation chances are 10% over 48 hours, 40% over 7 days

6abc Philadelphia

FOX 35 Orlando

+3

WESH

+3

WESH

+3

.

Most guidance favors gradual organization, with minimal impact potential to Florida or the Carolinas.

Eastern Tropical Atlantic (African Wave)

A developing tropical wave is moving westward and entering the Main Development Region.

Formation chance: 20% over 48 hours, rising to 50–60% over 7 days

New York Post

+15

WESH

+15

Houston Chronicle

+15

Houston Chronicle

+1

FOX 35 Orlando

+1

.

Model consensus leans toward a northward curvature in the central Atlantic, but exact path remains uncertain until a center forms.

No other systems currently expected to pose tropical cyclone formation risk through early next week

Houston Chronicle

.

TNW News — Hurricane Division Brief

Tropical Storm Dexter & Atlantic Outlook

Published: August 6, 2025 – 5:00 AM EDT

By TNW News Hurricane Operations Staff

While Tropical Storm Dexter is officially the fourth named storm of the 2025 Atlantic season, it remains a Minimal Tropical Storm and is moving away from land. With sustained winds of 45 mph and a central pressure near 1003 mb, the system is forecast to weaken into an extratropical cyclone later this week and pose no threat to the U.S.

Houston Chronicle

+11

WESH

+11

National Hurricane Center

+11

.

Two other Atlantic disturbances warrant attention:

A low-pressure trough off the Southeast U.S. coast may organize slowly, with NHC assigning a 40% chance of development in the next 7 days. Regardless, any system that forms is expected to remain well offshore or dissipate as it curves northeastward

Houston Chronicle

+4

WESH

+4

WESH

+4

.

A tropical wave in the eastern tropical Atlantic shows increasing support for development, with a 50–60% chance over the next week. Long-range models suggest potential impact in the central Atlantic, and possibly further west later in August as climatological conditions improve

WESH

FOX Weather

.

Season Outlook:

Atlantic hurricane season is intensifying, with mid-August forecasts calling for 13–19 named storms, including up to 10 hurricanes and 3–5 major hurricanes

chron.com

+2

Wikipedia

+2

.

Key Takeaways from TNW Hurricane Division

Dexter poses no hazard to U.S. shores; impacts will remain confined to the open North Atlantic.

A weak low off Florida could bring increased rain this weekend—no expected threat.

A wave from Africa remains the primary focus of NHC and TNW tracking.

Climatological activity is ramping up—peak season arrives mid‑August.

Stay informed with live updates, forecast maps, and preparatory guidance at TNWWeather.com and on social media via @TNWWeather.

Copyright © 2025 TNW News LLC — All Rights Reserved

This bulletin may not be reproduced without written consent from the TNW Hurricane Operations Division.