Timeline: Where Tropical Depression Nine is headed and when it could become a hurricane
Here is a timeline of what forecasters are expecting for the rest of the week.
Tropical Depression Nine forms in Atlantic, likely to become season’s first hurricane
Tropical Depression Nine has formed in the Atlantic and is likely to strengthen into the basin’s first hurricane of the season in the coming days. FOX Weather Meteorologist Haley Meier breaks down what to expect.
THE TAKEAWAY
- Tropical Depression Nine is expected to strengthen into a hurricane as it tracks toward the Gulf Coast.
- The storm is expected to intensify into a hurricane on Thursday.
- By Friday, the storm is expected to reach peak intensity as a Category 1 or Category 2 hurricane.
Tropical Depression Nine formed in the Atlantic on Tuesday amid the quietest start to an Atlantic hurricane season since 1966, with no hurricanes having formed so far this year.
The disturbance, formerly known as Invest 92L, has developed a closed circulation and become organized enough to be upgraded to a tropical depression.
The system currently has maximum sustained winds of 35 mph and is drifting slowly over the southwestern Gulf of America.
According to the FOX Forecast Center, conditions are expected to remain favorable for steady strengthening, setting the stage for potentially significant intensification.
The National Hurricane Center forecasts the system will strengthen into a tropical storm and eventually Hurricane Isaias by Thursday, which would make it the first hurricane of the 2026 Atlantic hurricane season.
Tropical Depression Nine forms in the Gulf. (CIRA CSU / NOAA)
Meanwhile, another surge of tropical moisture is expected to move into the Gulf Coast and Southeast, bringing another round of heavy rain to the region.
A tropical depression or hurricane moving through the region would only compound the impacts into the weekend, with a Level 2 out of 4 flash flood risk now in place across six states from Louisiana to South Carolina and into northern Florida.
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However, questions remain about how strong the storm will become and exactly where it will track.
Satellite imagery of the Gulf on Oct. 6, 2026. (CIRA / FOX Weather)
The FOX Forecast Center said the next couple of days will be critical in determining how powerful the system becomes and where it heads.
Here is a timeline of what forecasters are expecting for the rest of the week.
Wednesday
Tropical Depression Nine is forecast to strengthen into a tropical storm, prompting tropical storm and hurricane watches to be issued across portions of the northern Gulf Coast.
Meanwhile, the system will be near the Yucatán Peninsula, where Hurricane Hunters are expected to begin a routine low-level flight into the storm to gather critical data on its strength and structure.
Thursday
The storm is expected to intensify into a hurricane over the southern Gulf of America.
Gusty winds and periods of heavy rain are likely across the western Yucatán Peninsula.
Hurricane watches could be upgraded to warnings as the storm approaches, while storm surge forecasts and information are expected to be issued.
Friday
According to the FOX Forecast Center, the storm is expected to reach peak intensity as a Category 1 or Category 2 hurricane.
Steering currents are expected to force the storm to make a sharp turn toward the northeast, causing the hurricane to accelerate toward the northern Gulf Coast.
Heavy rain will begin Friday morning and increase in intensity throughout the day, while strong winds are expected to begin impacting the coast later in the afternoon.
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The threat of flash, urban and isolated river flooding will increase and could persist into the weekend.
Landfall is forecast for Friday evening, sometime before midnight.
Dark storm clouds gathering over a sandy beach and rough coastal water. ( Olha Semeniv / Getty Images)
Saturday to Sunday
How Saturday and Sunday unfold will depend largely on what happens during the previous two days.
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The FOX Forecast Center said a Level 2 out of 5 severe weather threat is in place for Saturday, with tropical tornadoes possible.
Rain and winds are also expected to gradually increase along the Gulf Coast as the storm moves north.