


Tropical Weather Outlook and Summary
Issued by NWS
Issued by NWS
261 ABNT20 KNHC 111239 CCA TWOAT Tropical Weather Outlook...Corrected NWS National Hurricane Center Miami FL 800 AM EDT Mon Aug 11 2025 For the North Atlantic...Caribbean Sea and the Gulf of America: Corrected to fix a typo and include mention of gale warnings for non-tropical area of low pressure south-southeast of Nova Scotia. Eastern Tropical Atlantic (AL97): Shower and thunderstorm activity has persisted and continues to show signs of organization with a well-defined area of low pressure located just to the west of the Cabo Verde Islands. If these structural trends continue, the system is likely to become a tropical depression or storm, possibly as soon as later this morning. Locally heavy rainfall and gusty winds are expected to continue today across portions of the Cabo Verde Islands, and interests there should monitor the progress of this system. Regardless of development over the next couple of days, the system is expected to continue moving westward to west-northwestward at 15 to 20 mph across the eastern and central tropical Atlantic. * Formation chance through 48 hours...high...90 percent. * Formation chance through 7 days...high...90 percent. Central Atlantic (AL96): A weak trough of low pressure located over the central Atlantic is only producing limited shower and thunderstorm activity. Significant development of this system is becoming unlikely over the next few days as the system drifts generally northward, remaining over the central Atlantic. * Formation chance through 48 hours...low...10 percent. * Formation chance through 7 days...low...10 percent. Northwestern Atlantic: A non-tropical area of low pressure is currently located a few hundred miles to the south-southeast of Nova Scotia, Canada. While current shower and thunderstorm activity with the system is limited, this system is drifting over the warm waters of the Gulf Stream where some tropical or subtropical development could occur over the next day or two. By the middle of this week, the system is expected to move northward over cooler waters, ending its chances for further tropical development. For more information on this system, including gale warnings, see High Seas Forecast issued by the National Weather Service. * Formation chance through 48 hours...low...10 percent. * Formation chance through 7 days...low...10 percent. && High Seas Forecasts issued by the National Weather Service can be found under AWIPS header NFDHSFAT1, WMO header FZNT01 KWBC, and online at ocean.weather.gov/shtml/NFDHSFAT1.php $$ Forecaster Papin