Tropical Update | Disturbance in East Atlantic has Potential to Develop

Figure 1. Latest 5-day graphical tropical weather outlook

An area of disturbed weather located in the far East Atlantic, approximately midway between Africa and the Lesser Antilles, has some potential to develop over the next few days as it tracks to the west.

Environmental conditions are not all that conducive for development. Sea surface temperatures (SST) are in the 26 – 28° (C) range, but a band of moderate to high shear is just ahead of the disturbance. There is also dry air from the saharan air layer (see figure 2) currently impacting the disturbance.

Figure 2. Mid-level water vapor satellite image showing the disturbance and the dry air surrounding it.

However, shear is expected to relax this weekend as the disturbance tracks generally west, which could allow for some gradual development. Looking at the latest model guidance, the GFS, UKMET, ECMWF, GEFS, and EPS all predict at least some development.

In their 8:00 AM EST tropical weather outlook, the National Hurricane Center gave the disturbance a 10% chance of development over the next 2 day and a 20% chance over the next 5 days.

Towards the end of next week wind shear is expected to increase, which would limit further development; it will also likely cause this system to be short-lived if it develops.


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Caleb Carmichael
Caleb Carmichael

Caleb is the owner of Gulf Coast Storm Center. He is currently an undergraduate student at Mississippi State University majoring in geoscience with a concentration in broadcast and operational meteorology. While not yet a meteorologist, Caleb has been providing weather updates, news, and analysis for the Gulf Coast since 2014.

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