According to The National Weather Service, a flash flood watch remains in effect through the Friday morning commute in Northern New Jersey.
Forecasters said although much of the storm has passed, there still is a period of heavy rainfall, likely with the passage of the slow-moving cold front.
A widespread 1 to 2 inches of rainfall is forecast, with locally higher amounts falling across parts of the state with localized flooding hitting low-level areas and neighborhoods with rivers, ponds and small lakes.
Forecasters said scattered flash flooding of urban and poor drainage areas is possible.
According to the National Weather Service, the rainfall combined with wet antecedent conditions in a short period of time will lead to an increased potential for flash flooding.
Much of the heavy rain should exit during the early morning hours Friday.