Looks like a train of tropical waves in the Atlantic as two areas of interest spin behind Hurricane Erin’s path.

One wave just off the coast of Africa near the Cabo Verde Islands, Invest 99L, has a 30% chance to form in the next 7 days.

The disturbance is moving west around 15 mph but currently only has a low chance of development as it will run into less favorable conditions into this weekend.

The other tropical wave just ahead of Invest 99L is producing a broad area of storms in the central Atlantic. This is moving at a quick 20 mph to the west-northwest and fighting off some dry air in the process.

This disturbance will be near the Leeward Islands on Friday and could become a tropical depression later this week. Odds are 60% for something to form. Currently, the steering is in our favor for a trough to help protect Florida and guide the storm east of us.

Hurricane Erin has started it’s turn to the northwest and slowed down to 7 mph during the process. It has weakened to a Category 2 storm with 105 mph sustained winds.

Things are on track for this to continue on a more northerly path before curving northeast out to sea.

There are newly issued advisories along the North Carolina Coast where Erin will make the closest pass to the U.S.

Tropical Storm Warning: Beaufort Inlet to Duck, NC

Tropical Storm Watch: north of Duck, NC to Cape Charles Light, Virginia.

Storm Surge Warning: Cape Lookout to Duck, North Carolina (2-4′ of surge is possible)

Tropical storm conditions start late Wednesday. Large waves, beach erosion and overwash could make some roads impassible with conditions improving this weekend.

Hurricane Erin has reorganized into a Category 4 storm tonight and has gradually grown in size over the past few days.

There has been no significant change to its projected path. The storm’s center is expected to pass several hundred miles east of Florida before curving northeast, keeping its core entirely offshore of the U.S. East Coast.

Even without a direct hit, Erin’s close pass will generate life-threatening rip currents and powerful swells along much of the Eastern Seaboard. Mandatory evacuations have been ordered for parts of Hatteras Island, North Carolina, where 15–20 foot breaking waves are anticipated.

Tropical Storm Warnings remain in place for the Turks and Caicos Islands and parts of the Bahamas. Flood Watches also continue for Puerto Rico and the U.S. Virgin Islands.

Meanwhile, a tropical wave in the central Atlantic is showing increasing signs of development. The National Hurricane Center now gives it a 40% chance of formation within the next 7 days.

It is far too early to know its potential path. The disturbance is still more than 3,000 miles away, giving us plenty of time to monitor its progress.

The next name on this year’s Atlantic storm list is Fernand.