Update: Delta Now A Category 4 Storm

Delta continues to rapidly strengthen, and is now a category 4 hurricane.

"Environmental conditions of low 

vertical wind shear, deep warm waters, and sufficient mid-level

moisture are expected to support additional rapid intensification

through today", the National Hurricane Center said.

Delta should be a category 4 storm when it passes over the Yucatan Peninsula tonight and tomorrow. Weakening is likely over land, but some restrengthening is expected over the Gulf of Mexico. 

While weakening is likely in the northern Gulf, Delta will still be a dangerous hurricane.