NEW: Isaias strengthens into hurricane, barrels toward Gulf Coast

Tracking Hurricane Isaias: Storm, with 85 mph winds, moving toward Gulf Coast

Gulf Coast braces for Hurricane Isaias

Hurricane Isaias intensifies as it takes aim at the Gulf Coast

Hurricane Isaias intensifies as it takes aim at the Gulf Coast

Isaias strengthens into a hurricane as it continues toward Gulf Coast

Preparations ramp up as Hurricane Isaias approaches the Gulf Coast

Hurricane Isaias Strengthens as it Targets Gulf Coast

Hurricane Isaias threatens Gulf Coast with potentially catastrophic landfall

Hurricane Isaias could hit Gulf Coast Friday or Saturday

Gulf Coast prepares for landfall as Hurricane Isaias gains power

NBC Nightly News with Tom Llamas Full Episode - Oct. 7

Hurricane Isaias forms in Gulf

Hurricane Isaias now a Category 1 storm; US braces for landfall

Hurricane Isaias Nears Major Status Ahead of Gulf Coast Landfall

Tracking the Tropics: Hurricane Isaias moves through the Gulf