This low pressure system is currently a poorly organized tropical low pressure system but is not organized enough to be labeled a tropical depression or storm due to a lack of a closed low level circulation. There is still a chance that this low pressure system could become a tropical storm or a sub-tropical storm over the next 24 hours, but due to strong shear at the upper levels, this potential is quickly diminishing.
Whether tropical or not, this low pressure system is producing intense rainfall along the South Carolina and North Carolina coasts this afternoon. As the low pressure system lifts to the northeast tonight through tomorrow towards the Outer Banks of North Carolina, the rainfall will intensify and winds from the east and northeast at 25 to 40 mph can be expected. The low pressure system is expected to turn to the east-northeast tomorrow afternoon leading to steady, heavy rainfall to push north into southeastern Virginia and the Delmarva Peninsula. Steady light to moderate rain will push into southern and central New Jersey as well through the day tomorrow. While clearly the worst impacts are expected over the southern Mid Atlantic, the entire Mid Atlantic coast from Long Island on south can expect overcast skies, rain, windy conditions, minor coastal flooding, and well below normal temperatures. The following are expected impacts for the Delmarva to the northern South Carolina coast:
*Flash Flooding due to due to rainfall amounts of 3"+
*Wind damage due to sustained winds of 25 to 40 mph and gusts over 60 mph
*Coastal Flooding with a storm surge up to 2 feet in low lying areas
The storm is expected to impact the southern Mid Atlantic from tonight on through tomorrow evening before exiting into the northwestern Atlantic by Wednesday morning. Here's the official latest from WeatherOptics regarding potential wind speeds, rainfall, and track + intensity: