Tropical Storm Isaias formed early Wednesday in the southwestern Gulf of Mexico and is forecast to rapidly strengthen into the Atlantic season’s first hurricane before approaching the northern Gulf Coast late Friday or early Saturday.
By yourNEWS Media Newsroom.
Tropical Storm Isaias formed early Wednesday over the warm waters of the southwestern Gulf of Mexico, with forecasters warning that the system could rapidly strengthen into a hurricane before reaching the U.S. Gulf Coast later this week.
As of 4 a.m. CDT Wednesday, Isaias had maximum sustained winds of 40 mph and was centered about 285 miles west of Progreso, Mexico, and 580 miles southwest of the mouth of the Mississippi River, according to the National Hurricane Center.
The storm was moving east-northeast at 8 mph with a minimum central pressure of 1004 millibars.
Forecasters expect Isaias to strengthen quickly over the next day or two and become a hurricane by Thursday.
No coastal watches or warnings were in effect early Wednesday, but the hurricane center said residents along the northern Gulf Coast should closely monitor the storm as the forecast becomes clearer.
“There is an increasing risk of dangerous wind and storm surge impacts along portions of the northern Gulf Coast,” forecasters said, urging residents from Louisiana to the Florida Panhandle to review hurricane plans and prepare for possible impacts.
The precise landfall location remained uncertain Wednesday morning.
Early projections placed the most likely landfall corridor somewhere between eastern Louisiana and the western Florida Panhandle, with the center potentially reaching the coast late Friday or early Saturday.
Because tropical cyclone forecasts can shift significantly several days before landfall, forecasters cautioned residents against focusing exclusively on the center line of the projected track.
Isaias is expected to pass north of Mexico’s Yucatán Peninsula before turning toward the central and northeastern Gulf of Mexico.
Conditions over the Gulf are favorable for intensification, including very warm water and an atmospheric environment expected to become increasingly supportive of strengthening.
The hurricane center said rapid intensification is possible.
Heavy rainfall is also expected to become a significant threat as Isaias approaches the United States.
Forecasts call for several inches of rain across portions of the northern Gulf Coast and Southeast beginning Friday and continuing through the weekend, creating a risk of flash flooding and localized river flooding.
Florida Gov. Ron DeSantis has already declared a state of emergency in 25 counties across the Panhandle and Big Bend in preparation for potential impacts.
“Today, I signed an Executive Order issuing a state of emergency ahead of potential impacts from Tropical Depression 9,” DeSantis said Tuesday before the system strengthened into Isaias.
“This order will allow the Florida Division of Emergency Management to stage critical preparedness resources and ensure Florida is ready to respond,” DeSantis said. “Floridians should take this time to get disaster plans in place and ensure their hurricane supply kit is stocked.”
The emergency declaration activates Florida’s emergency-management system and allows the state to pre-position personnel, equipment, generators, food, water and other supplies.
Energy companies in the Gulf have also begun taking precautions.
Chevron said it evacuated some nonessential workers from offshore platforms that could be affected by the storm, although production from its Gulf assets remained normal as of Tuesday.
The developing storm could affect oil and natural-gas operations if its track crosses major production areas in the central Gulf.
Isaias is notable for arriving unusually late in the Atlantic hurricane season.
The 2026 season has produced named storms but no hurricanes through early October, an unusually quiet stretch attributed in large part to strong El Niño conditions that have increased wind shear over the Atlantic basin and disrupted tropical development.
If Isaias reaches hurricane strength as forecast, it would become the first Atlantic hurricane of the season and the latest first hurricane formation since 1905.
The contrast with the Pacific has been substantial, with tropical cyclone activity there running well above average during much of the year.
Despite the quiet Atlantic season to date, hurricane officials cautioned that late-season storms can still pose serious threats, particularly in the Gulf of Mexico where water temperatures remain warm well into October.
Isaias is expected to continue moving east-northeast before gradually turning toward the northern Gulf Coast.
Forecasters said the storm’s eventual strength and landfall point will depend heavily on how quickly its circulation organizes and how it interacts with atmospheric steering currents over the next 48 hours.
Residents from Louisiana through Mississippi, Alabama and the Florida Panhandle were advised to continue monitoring official forecasts and be prepared for hurricane watches or warnings as Isaias moves closer to land.
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