Active Systems: The National Hurricane Center is issuing advisories on Hurricane Fiona, located between Puerto Rico and the Dominican Republic. 1. Central Subtropical Atlantic: Satellite wind data from earlier tonight indicated an area of low pressure has formed over the central subtropical Atlantic, and it is producing disorganized showers and thunderstorms. There is a short window for this system to develop further over the next day or two before environmental conditions become less favorable later this week. The system should move generally northward or northeastward while remaining over the open central subtropical Atlantic. * Formation chance through 48 hours...low...20 percent. * Formation chance through 5 days...low...20 percent.