Hurricane Isaias intensified into the first hurricane of the 2026 Atlantic season as it approached the northern Gulf Coast, prompting evacuations, production shutdowns, and emergency declarations across multiple Gulf Coast states.

As of Thursday, Isaias was located approximately 715 kilometers south-southwest of the mouth of the Mississippi River, with maximum sustained winds of about 120 kilometers per hour (75 miles per hour), according to the US National Hurricane Center (NHC). The storm was moving east-northeast at 9 miles per hour and was expected to strengthen further as it neared landfall, potentially impacting the Florida Panhandle, southern Alabama, and southern Mississippi by late Thursday or Friday.

Authorities in Florida and Alabama issued mandatory evacuation orders and closed schools in several counties in anticipation of strong winds, heavy rain, and life-threatening storm surge. Governors in both states declared states of emergency covering dozens of counties. Forecasters warned of the possibility of flooding continuing into the weekend due to the storm’s expected rainfall.

The approach of Isaias also affected energy infrastructure in the US Gulf of Mexico. Offshore oil and gas producers, including companies such as Shell and Chevron, began curtailing operations on Gulf platforms as a precaution. By Wednesday, approximately 25% of current oil production and over 16% of natural gas output in the region had been shut in, according to the Marine Minerals Administration. The storm’s path through a key oil and gas production zone raised concerns about potential disruptions to supplies, which could put further pressure on fuel inventories and already elevated gasoline prices.

Meteorologists noted that this year’s Atlantic hurricane activity had been relatively limited due to a strong El Niño pattern, which typically creates unfavorable wind conditions that inhibit storm development. Isaias’ formation came late in the season, emerging more than four months after the official start and narrowly missing breaking a 121-year-old record for the area’s latest-forming hurricane by one day.

Residents and officials in the Gulf Coast region continue to monitor Isaias closely as it moves toward land, with emergency response efforts underway to mitigate the potential impacts of the storm.