Mercer County, N.J. (PBN). The National Weather Service has issued a flood warning for Mercer County. The Assunpink Creek is forecasted to go into action stage around 7.5ft on Thursdays at noon. The Delaware River Action Stage is 17.0 The river will reach up to 14.2ft Friday through the weekend staying below flood stage. A FLOOD WARNING REMAINS IN EFFECT UNTIL 530 AM THURSDAY.
