Potential Tropical Cyclone 9 expected to become hurricane by Wednesday
PTC 9 is expected to "strengthen significantly" over the next few days, becoming a hurricane by Wednesday. When the system gets a name, it'll be Helene. As of the latest advisory, PTC 9 is about 100 miles southwest of Grand Cayman. It's moving north-northwest at 7 miles per hour with maximum sustained winds of 35 miles per hour.