The heavy rainfall poses a high risk of flash flooding, particularly in low-lying areas and regions with clogged drains and sewers. New Jersey has been hit especially hard, with major flooding reported along the Jersey Shore. In New York City, the subway system is vulnerable to flooding if rainfall rates exceed 2 inches per hour, potentially disrupting commutes. Long Island, already affected by weekend storms, faces additional risks from debris and water accumulation. Residents are advised to remain vigilant and avoid unnecessary travel (NBC New York, 2026-07-06).