Invest 93 Strengthens With Organized Thunderstorms Overnight

Invest 93 has acquired some subtropical characteristics since yesterday, including some organized thunderstorm activity and less defined frontal features near the center.This system has the potential to become a subtropical storm tonight or early Thursday as it accelerates to the northeast before upper-level winds and water temperatures become unfavorable for further development on Friday.Regardless of the status of the system, high winds, coastal flooding, and dangerous surf are expected along portions of the U.S. East Coast during the next few days.The formation chance through 48 hours and 7 days has increased to 50 percent.In the Central Atlantic a new trough of low pressure, located several hundred miles east-southeast of Bermuda, is producing a large area of disorganized showers and thunderstorms.Some development of this system is possible during the next day or two while it moves slowly north-northeastward. Upper-level winds are forecast to become too strong for further developme