Atlantic Daily Briefing

Tropical Cyclone Development Outlook

Active Systems

Name Max Wind Classification Lat Lon
Florence 100 mph Category 2 34.2N 77.3W
Helene 65 mph Tropical Storm 28.6N 36.2W
Isaac 40 mph Tropical Storm 15.0N 66.0W
37 30 mph Tropical Disturbance 26.0N 96.0W
Joyce 45 mph Subtropical Storm 34.1N 42.7W

Hurricane Florence is centered near Wilmington, NC. It is bringing gale to hurricane force winds, flooding rainfall, and life threatening storm surge to the North Carolina Coast. As Florence tracks slowly into the Carolinas through the weekend, widespread heavy rainfall and flooding are expected. Flooding is expected to be catastrophic for southeastern North Carolina and portions of northeastern South Carolina. Please see our latest advisory on your StormGeo web portal for further details.

Tropical Storm Helene is about 680 miles to the southwest of the Azores. Sustained winds continue to be estimated to be near 65 mph. A track to the northeast is expected. Helene is forecast to bring heavy squalls and gales to the Azores on Saturday. Please see our latest advisory on your StormGeo web portal for further details.

Isaac has been downgraded to a tropical depression. It is expected to continue weakening as it tracks through the Caribbean. It may weaken to a remnant low later today. At this time, we are not anticipating redevelopment.

Disturbance 37 is near the South Texas Coast. Though shower and thunderstorm activity associated with the system has increased recently, its window of opportunity to develop is decreasing quickly. Therefore, development chances have been decreased since yesterday. We estimate development chances to be 10 percent. Regardless of development, the disturbance is causing increased showers and thunderstorms across the northwest Gulf of Mexico and coastal areas of Texas.

Subtropical Storm Joyce is roughly 1000 miles southwest of the Azores. It has winds near 40 mph. Joyce will continue to slowly track southwestward over the next 24 hours, before turning towards the east-northeast. Joyce will likely dissipate before reaching the Azores. Please see our latest advisory on your StormGeo web portal for further details.

Other Disturbances / Areas to Watch
Disturbance 39 is over the Cabo Verde Islands. It is moving west near 10 mph. The system is disorganized and is expected to remain weak. No development is expected.

Meteorologists: Cameron Self / Derek Ortt