The National Weather Service has issued a flood watch for the Somerset County area. The watch is in effect from Tuesday morning through late Wednesday night.
From Tuesday morning through late Wednesday night, rainfall amounts of two to four inches are possible during the watch period, according to the National Weather Service. Locally higher amounts are possible.
Two low pressure systems will consolidate into one over the Carolinas tomorrow. The low will then shift over the Ohio Valley on Thursday before moving offshore on Saturday. Because of the slow movement of the low and the track itself, the region will experience a prolonged, moisture-rich southeast flow that is likely to result in periods of moderate to heavy rain from late tonight through Wednesday night.
Flooding is possible if these predicted rainfall amounts occur. Flooding would first occur in low-lying and poor-drainage areas, followed by quick responding creeks and streams, followed by larger rivers.
Rivers in both the Passaic and Raritan basins appear most susceptible to potential flooding.