Why October shifts tropical storm focus directly toward the Gulf

TAMPA, Fla. - Forecasters are monitoring a low-probability system in the middle of the Atlantic as tropical development patterns shift toward the Gulf and Caribbean Sea this month.

Central Atlantic system tracking

What we know:

The Atlantic Ocean remains mostly quiet with only one region currently monitored by meteorologists. This central Atlantic area holds a 10% chance of developing into an organized tropical system.

Environmental conditions around this specific system feature low wind shear, which allows potential organization. However, strong wind shear covers the majority of the rest of the Atlantic basin.

Gulf and Caribbean shift

What we don't know:

It remains unclear if any tropical systems will successfully form in the Gulf due to competing weather factors. Forecasters are watching to see if strong atmospheric conditions will completely block storm growth.

The backstory:

As October begins, tropical activity typically moves away from the open ocean and shifts toward the Caribbean Sea and the Gulf. Autumn patterns frequently produce a broad area of low pressure over Central America known as the Central American Gyre.

This broad gyre can periodically trigger localized low pressure systems that occasionally develop into named tropical storms. Additionally, cold fronts regularly push into the Gulf during October and stall out.

Atmospheric barriers present

Big picture view:

Stalled cold fronts in the Gulf often serve as launching points for new low pressure systems. Despite these seasonal triggers, El Niño conditions are creating high wind shear that acts as a major deterrent to storm growth.

The Gulf is set to become a battleground between favorable atmospheric setups and hostile wind shear. Weather experts will closely monitor the region to see if any systems can overcome these hostile conditions.

TampaWeather