The National Hurricane Center has raised the probability of tropical development for Invest 91L to 80% over the next two to seven days.

The broad area of low pressure off Florida’s west coast in the Gulf of America should be tracked into the new week, as early Sunday model guidance suggests it could eventually threaten offshore oil and gas rigs and coastal refineries.

NHC’s latest Invest 91L update:  

A area of low pressure located over the northeastern Gulf of America continues to become better defined and the associated shower and thunderstorm activity is gradually increasing.

Continued gradual development is expected, and a tropical depression is likely to form later today or on Monday as the system moves slowly northward or northwestward.

Interests along the northern Gulf coast from Florida, Alabama, Mississippi, and Louisiana should monitor the progress of this system, as tropical storm watches or warnings could be required for portions of the area later today.

In addition, this system is expected to bring heavy rains to portions of the northern Gulf coast during the next several days. An Air Force Reserve reconnaissance aircraft is scheduled to investigate the low pressure area later today.

Formation odds:

• Formation chance through 48 hours…high…80 percent.
• Formation chance through 7 days…high…80 percent.

Model Track:

Refinery Map:

Regardless of Invest 91L’s development, the broad area of low pressure will traverse northwest, away from Southwest Florida and towards the New Orleans area.

The Atlantic Hurricane season is beginning to move into an active phase.

Notably, El Niño generally suppresses Atlantic hurricane activity by increasing upper-level westerly winds and vertical wind shear across the Caribbean and tropics, which disrupt tropical systems before they organize or intensify.

More on developing El Niño here.