At a Glance A tropical storm will soon form in the southern Caribbean Sea.The system is bringing heavy rain to northern Venezuela, northern Colombia and the ABC Islands.'Julia' will arrive in Central America Sunday.It's first expected to strike Nicaragua and Honduras, then spread flooding rain inland. Sign up for the Morning Brief email newsletter to get weekday updates from The Weather Channel and our meteorologists. A​ tropical storm, likely to be named Julia, will form in the southern Caribbean Sea...