Another round of moderate to heavy precipitation is forecast to move through the region on Thursday as low pressure moves north from Virginia into eastern Pennsylvania. As a result, we have some weather hazards to watch for over the next few days:
Headlines: A Flood Watch has been issued for central and northern NJ Thursday morning through Friday afternoon.
Flooding Rains: There is a risk of low lying and poor drainage flooding Thursday into Thursday evening. Runoff from this rain could cause a number of smaller creeks and stream to overflow their banks Thursday afternoon into Thursday night. Total rainfall amounts of 1 to 2 inches with locally 3 inches are currently expected.
Locations: A higher threat exists across central and northern New Jersey, and to a lesser extent, southern New Jersey, northern Delaware, and southeastern and east central Pennsylvania.
Timing: Thursday and Thursday night.
River Flooding Risk: Several forecast points are forecast to reach minor flooding beginning early Friday morning. For the latest information on this risk visit: https://water.weather.gov/ahps2/index.php?wfo=phi
Locations: Currently, the greatest flood risk lies across the Passaic and Raritan Basins in NJ. However, with the rainfall still about 36 hours away, the threat of flooding could shift or expand south and westward to include portions of the middle Delaware basin.
Timing: The risk for river flooding will increase early Friday morning and may linger through early next week.