Atlantic Tropical Storm Outlook
Storm System
| Position | Direction
| Speed
(mph) | Pressure
(mb) | Winds
(mph) | | Lat | Lon | | HURRICANE GABRIELLE | 27.7N | 61W | NW | 12 | 993 | 75 | |
* GABRIELLE POISED TO BECOME A HURRICANE LATER TODAY.
Tropical Weather Outlook
NWS National Hurricane Center Miami FL
200 PM EDT Sunday September 21 2025
For the North Atlantic...Caribbean Sea and the Gulf of America (Gulf of Mexico):
Active Systems: The National Hurricane Center is issuing advisories on Tropical Storm Gabrielle, located over the central subtropical Atlantic.
Central Tropical Atlantic: A broad tropical wave in the central tropical Atlantic is producing limited showers and thunderstorms well to the west-southwest of the Cabo Verde Islands. Although environmental conditions are not favorable for initial development of this system over the next day or two, these conditions should gradually become more favorable for development by the middle to latter part of this week, and a tropical depression could form while the system moves west-northwestward to northwestward across the central Atlantic.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 7 days...medium...50 percent.
East of the Windward Islands: Another tropical wave located more than 500 miles to the east of the Windward Islands is currently is producing a small area of disorganized showers and thunderstorms as it moves quickly westward. Earlier satellite-derived wind data indicated the wave does not have a closed circulation. Environmental conditions appear only marginally conductive for further development over the next several days as the wave continues to move quickly westward to west- northwestward at around 20 mph. By the latter part of this week, the system is expected to slow down and turn more northwestward to the north of Hispaniola. Regardless of development, the system is expected to bring gusty winds and showers for portions of the Leeward Islands on Tuesday.
* Formation chance through 48 hours...low...10 percent.
* Formation chance through 7 days...low...20 percent.
Forecaster: Philippe Papin, National Hurricane Center
For detailed analysis see The Atlantic Tropical Weather Discussion.
Dock Quote: “Success is three... 
