We remain focused on an area of low pressure located about 230 miles east of St. Augustine.

The system is becoming better defined as it moves slowly southward to southwestward, according to the 2 p.m. update by the National Hurricane Center.

Invest 91-L is expected to slide south on Sunday and has a high chance of development into a tropical system within the next 48 hours. While there is still some uncertainty to the exact track and ultimate intensity, it is something to watch because of its close proximity to Central Florida.

Although upper-level winds are only marginally favorable, a tropical depression could still form during the next day or two.

The system has a 60 percent chance of development within 48 hours, and an 80 percent chance of development in the next five days according to the latest projections by the National Hurricane Center.

There is still uncertainty regarding the exact track of the center of low pressure. Some computer models favor the movement in the southerly direction before stalling to our east and before it curves back to the northeast and away from Florida. Some models want to bring the storm over land, which would give it less time to intensify over water.

We will continue to keep you informed with Tropical Updates at :21 and :51 past each hour.