Flood Watch Issued for 14 New Jersey Counties as Severe Storms Threaten Tuesday

A flood watch has been issued across 14 New Jersey counties from Tuesday into Wednesday, with the National Weather Service warning of multiple rounds of severe thunderstorms capable of producing damaging winds, heavy rainfall, and isolated tornadoes. The enhanced risk level for severe weather—classified as level 3 of 5—reflects the potential severity of conditions expected to impact the northeastern portion of the state and adjacent areas of Pennsylvania.

Storm Timeline and Intensity

The weather system will unfold in distinct phases beginning early Tuesday morning. A warm front arriving from the south will introduce moisture-laden air and scattered showers during the morning commute. By afternoon, a cold front will push through the region, triggering the most severe weather window. National Weather Service forecasters expect this afternoon and evening period to pose the greatest risk for widespread severe activity, with the primary threat being damaging wind gusts in addition to heavy rainfall capable of producing flash floods.

Rainfall rates during the heaviest downpours could reach one to two inches per hour in localized areas. Given that soil conditions across much of the region remain saturated from previous heavy rainfalls, even brief intense precipitation could trigger rapid flash flooding. The I-78 and I-80 corridors across northern New Jersey and northeastern Pennsylvania face particular concern, as some areas in these zones experienced significant flash flooding damage over the preceding weekend.

Affected Counties and Hazards

The flood watch encompasses Hunterdon, Morris, Somerset, Middlesex, Monmouth, Mercer, Gloucester, Camden, northwestern Burlington, Passaic, Hudson, Bergen, Essex, and Union counties. Monmouth County received special attention from meteorologists at the National Weather Service's Mount Holly office due to its already saturated ground conditions. Beyond flooding, the weather service has not ruled out the possibility of isolated tornado development as the system progresses through the region. Additional hazards include damaging winds capable of bringing down tree limbs and power lines, along with large hail in some areas.

Coastal areas face compounded risks. The moderate rip current risk on both Tuesday and Wednesday, combined with wave heights reaching five feet by Wednesday, creates dangerous beach conditions. The National Weather Service advises beachgoers to exercise extra caution regarding lightning strikes and ocean currents throughout the event.

Forecast Outlook

Storm activity is expected to persist into early Wednesday morning along coastal sections, depending on the speed at which the cold front exits the region. Additional showers and thunderstorms remain possible Wednesday afternoon before conditions stabilize. By late Wednesday, weather clearing is anticipated, and the remainder of the week is expected to remain dry and sunny.