The system is still no direct threat to land, and it will likely not last long even if it does become a subtropical/tropical storm.
A subtropical storm is a hybrid cyclone.
The system is no threat to the US, forming in a similar place in the Central Atlantic Ocean as its predecessor Tropical Storm Debby.
Ernesto will continue to move northeast in the open Atlantic before likely transitioning into an extratropical low pressure system and could impact the United Kingdom in some form by next week, though likely not majorly. The National Hurricane Center started issuing advisories on this Subtropical system Wednesday morning. "Some strengthening is forecast during the next day or so, and the subtropical depression is expected to become a subtropical storm later today".
Ernesto had maximum sustained winds near 45 miles per hour (75 kph).
Tropical-storm-force winds extend outward up to 35 miles from the center.
A faster northeastward motion is forecast for Thursday and Friday, meteorologists said. With the dust contributing drier air into parts of the atmosphere, that's not a good thing when it comes to a tropical wave looking to develop. Even though the outlook has been adjusted to lower numbers, we haven't reached the peak of the Hurricane Season.