Tropical depression or storm likely to form near Mexico.

There is an almost 100 percent chance that a tropical depression or tropical storm will form about 90 miles north of Cancun, Mexico, according to the National Hurricane Center.   

The Hurricane Center reported at 2 p.m. EDT that an Air Force hurricane hunter aircraft was en route to the area. 

"Interests in the central and western Gulf of Mexico should monitor this system as it moves west-northwestward at about 15 mph," the Hurricane Center said.   

The latest computer models have the system heading toward the northwest and landing somewhere along the Texas Gulf coast.