A huge and powerful tropical wave (Invest 99L) is generating winds of tropical storm force near the Virgin Islands, and could become a tropical storm at any time over the next two days as it heads ...

The National Hurricane Center is now advising that Invest 99L's chances of developing into a tropical system over the next five days is at 80 percent, according to a Sunday afternoon update. Shower ...

The weak area of low pressure and associated thunderstorms that forecasters call Invest 99L remained disorganized Friday (Aug. 26) at mid-day, with a low chance of forming a tropical depression or ...

Update 3:20 p.m.: Tropical disturbance 99L is spinning in the Caribbean, and will likely become Sara over the next several days across the western Caribbean. Then, by the end of the weekend and into ...

Hurricane Specialist John Cangialosi works at one of the computer pods in the nerve center at the National Hurricane Center in Miami, Wednesday, December 5, 2012. This computer station contains eight ...