Tropical Update: The tropics are beginning to get more active. Watching!

ncwxauthority

August 11, 2026 at 2:20:12 PM

🌀 Tropical Update: Good afternoon, everyone. I'm sure everyone is sick of working on this fine Tuesday, so as you take your scroll break from work, I thought you'd love to read my tropical update. In true fashion as we head toward the start of schools/colleges, the tropics are coming alive, and this year is no different. I am, and forecasters at the National Hurricane Center are monitoring two main areas for potential tropical development in the Atlantic Ocean and two areas in the Pacific Ocean, with one showing a potential threat to Hawaii.

In the Atlantic, we have an area of disturbed weather in the North Atlantic moving away from the United States that has a low chance 20% of some Tropical Development over the next 5-7 days, but does not pose any threat to NC!

Down in the Main Development Region of the Atlantic, we've had several tropical waves that are moving off Africa over the next 5-10 days, and some are trying to show signs of development. There is now a 70% from the National Hurricane Center that a Tropical Depression or Storm will develop in this area. There remains high wind shear and dry air, so it'll face an uphill battle as it moves generally westward across the Atlantic. Since the system has not even developed, let's take models with a grain of salt and not jump to too many conclusions, but the threat to North Carolina at this point is rather low. So there's no reason to worry at this point.

Image 2: Is a graphic I created to give you an idea how long it takes tropical systems to travel across the Atlantic Ocean (NOT A FORECAST), just an example. This location is 10-14 days away, and it may not even survive the trek across. There could be some enhanced moisture to parts of the Caribbean Islands which they very much need.

Over in the Pacific, there is an area of disturbed weather over 1k miles east southeast of the Hawaiian Islands that has a high chance of becoming a Tropical Depression or Storm. Interests in the Hawaiian Islands should closely

monitor the progress of this system.

I'll keep you posted all season long; nothing to worry about right now in NC!

Mountains

110°F

Raleigh area

CADEN NELSON

Tropical Development Possible East of the North Carolina Coast: High Surf and Rip Currents Possible

Ethan Clark

Jun 12, 2024

1 min read

Tropical Update: Looking over the newest model runs this afternoon, the European Ensembles are starting to suggest the chances of a Tropical Depression Delvoping off the NC coast over the next 72 hours are increasing. The latest Spaghetti models (also called spaghetti plots) are the nickname given to the computer models that show potential tropical cyclone paths. These show that the system will pass to the east of the North Carolina coast over the next 72 hours; based on the current modeling, the only impact on North Carolina will be increased surf and rip currents through Sunday. We will be just fine with this system.

As we're heading into the tropical season, I thought I would give you a quick refresher on Ensembles. Ensemble forecasting is a method used in Numerical Weather Prediction; instead of one run of the atmospheric conditions, ensembles are run with slightly different starting conditions. Multiple simulations are run, each with a slight variation of its initial conditions and with slightly perturbed weather models. These variations represent the inevitable uncertainty in the initial conditions and approximations in the models. Ensemble forecasting is very helpful, and you can take the averages and see the outliers to understand, how you should best create a forecast.