10/05/2026
Issued 9:24 a.m. ET
Monday, October 5, 2026
A named storm/hurricane is LIKELY to form in the Gulf late this week between October 7 and 10. It will likely be named Isaias, and could make landfall on the northern Gulf Coast. Models are becoming increasingly bullish in their simulations, depicting a Category 1-2 hurricane – or briefly stronger – meandering through the northern Gulf late week.
The National Hurricane Center estimates 70 percent odds of development.
Anyone from Houston to Tampa should be paying attention, but concern is the greatest from New Orleans to Pensacola for now.
DISCUSSION:
On Monday morning, a broad clump of convection, or thunderstorm activity, was festering over the Bay of Campeche west of the Yucatán Peninsula. Water temperatures there are 84 to 87 degrees, providing ample ocean heat content (fuel) for a storm to form.
Northwesterly winds funneled down Mexico's Sierra Madre Occidental mountains are meeting southeasterly winds blowing out of the Caribbean. In between, we get a pocket of vorticity, or spin, which may consolidate in the days ahead.
If that happens, a tropical depression – the precursor to a named storm – could form around Wednesday, October 7, then slowly organize late week.
There are some limiting factors, however. A strong subtropical jet stream racing across the southern U.S. will provide a wall of shear, or disruptive changing winds with height. That will weaken any hurricane as it approaches the coast. It would also allow dry air to spill into the southern states, hastening the system's unraveling.
That's why the hypothetical system would be weakening at landfall, though it could still deliver wind, surge and heavy rain impacts. Any dry air clashing with moist tropical air would also increase the tornado risk with a system's leftover tropical remnants.
Steering currents remain uncertain. While the Google DeepMind model, as well as the European model, simulate an upper-air disturbance scooping the tropical system northeast, there's also a chance that upper-level clockwise flow pushes it westward. That would increase the risk in Tamaulipas or Veracruz, Mexico.
For now, all we can do is be AWARE if we live along the Gulf Coast. The time to prepare may arise by Tuesday or Wednesday.
