Our silent stretch in the tropics continues

We are approaching the peak of our Atlantic hurricane season, but the North Atlantic Basin is still remaining quiet. No named storms are expected to form over the next seven days.

Saharan dust has blanketed large amounts of the Main Development Region (MDR). This is drying out tropical systems that are attempting to form, and will likely stay in place until the end of this month. Typically, the amount of Saharan dust we see in the region substantially decreases during this time of the year. The length of our current Saharan dust season has been unprecedented, which has contributed to our stretch of inactivity.

Another factor is the Intertropical Convergence Zone (ITCZ), where most tropical waves move along, has shifted northward in the Atlantic Basin. This has placed these emerging waves deeper into the Saharan dust plumes and over cooler waters to the north.

We have already had five named storms in the Atlantic. All five made landfalls at least once. In an average season, we see our sixth named storm form by August 29th. Thus, eight more days of silence would put the 2024 season behind schedule.

The remainder of our current season season is still forecast to be an active one. Warm sea surface temperatures, the eventual decline of our Saharan Air Layer, and the likely emergence of a La Nina ENSO phase during the season are all proponents for this. September is climatologically the most active month of our Atlantic hurricane season.

Hurricane Ernesto strengthens as the rest of the Atlantic remains quiet

Ernesto restrengthened into a hurricane on Sunday while continuing to move northeast. The Category 1 hurricane will stay hundreds of miles off the shoreline of the United States but will bring life-threatening surf and rip currents to the northeast early this week.

Ernesto will additionally bring wind, wave, and rain impacts to Newfoundland on Monday night into Tuesday morning as it makes a close pass. 

There are no new named storms expected to form in the Atlantic over the next seven days.

A large plume of Saharan dust has continued to aid in suppressing tropical activity in The Main Development Region.  We typically see the amount of this dust decrease in presence as we enter September.

Coincidingly, September also brings the climatological peak of tropical activity during hurricane season.