Atlantic Tropical Weather Outlook
203 ABNT20 KNHC 182343 TWOAT Tropical Weather Outlook NWS National Hurricane Center Miami FL 800 PM EDT Fri Sep 18 2026 For the North Atlantic...Caribbean Sea and the Gulf of America: Eastern Subtropical Atlantic (AL99): Showers and thunderstorms associated with the low pressure system located several hundred miles southwest of the Azores have become more concentrated during the past few hours, and a tropical depression could form later tonight or on Saturday. The system is expected to move slowly over the next couple of days remaining southwest of the Azores, followed by a turn to the southwest by early next week. Environmental conditions are forecast to become less favorable for development beginning Sunday night or on Monday. * Formation chance through 48 hours...high...80 percent. * Formation chance through 7 days...high...80 percent.