ABNT20 KNHC 201144 TWOAT Tropical Weather Outlook NWS National Hurricane Center Miami FL 800 AM EDT Wed Aug 20 2025 For the North Atlantic...Caribbean Sea and the Gulf of America: Active Systems: The National Hurricane Center is issuing advisories on Hurricane Erin, located over the southwestern Atlantic Ocean. Near the Leeward Islands in the Tropical Atlantic: A tropical wave located over the central tropical Atlantic continues to produce a broad area of disorganized showers and thunderstorms. Environmental conditions appear conducive for gradual development of this system, and a tropical depression could form late this week or over the weekend while it moves near or to the north of the northern Leeward Islands. * Formation chance through 48 hours...low...10 percent. * Formation chance through 7 days...medium...60 percent. Eastern Tropical Atlantic (AL99): A tropical wave located to the southwest of the Cabo Verde Islands continues to produce a concentrated area of showers and thunderstorms. Environmental conditions appear marginally favorable for additional development over the next day or so while the system moves westward at around 15 mph and a short-lived tropical depression could form. By the end of the week, environmental conditions are expected to become unfavorable for further development. * Formation chance through 48 hours...medium..40 percent. * Formation chance through 7 days...medium...40 percent. $$ Forecaster Bucci/R. Zelinsky