(Miami, FL)   --  A tropical storm has formed in the open Atlantic.  The National Hurricane Center says a cluster of thunderstorms has come together to form tropical storm Chantal. Maximum sustained winds at the core of thestorm system are 35 miles per hour.  The Hurricane Center is keeping a close eye on Chantal as it could impact the Caribbean in a matter of days.  Chantal is moving to the west at 23 miles per hour. 

Photo: nhc.noaa.gov