On Sunday at 1:33 a.m. the National Weather Service issued a flash flood warning in effect until 4:30 a.m. for DeKalb County.

New Jersey is under a flood watch on Thursday afternoon and evening with significant and widespread flash flooding in the forecast. See details on timing.

The warning emphasized caution to prevent lives being lost while attempting to drive through flooded areas, a recurrent risk in flash flood events. Residents were encouraged to report observations of flooding—including mudslides or submerged roads—via the NWS Blacksburg Facebook page, X or telephone when safe to do so.