Overview
- Federal and local forecast offices and New York City Emergency Management have issued active alerts and activated the city’s Flash Flood Emergency Plan as of Tuesday morning.
- Forecasters say multiple rounds of thunderstorms are likely Tuesday through Thursday, with Wednesday identified as the most concerning day for stronger storms.
- Damaging straight-line winds are the primary hazard expected, with guidance also noting the potential for large hail and a few brief tornadoes.
- Repeated heavy downpours and storm 'training' could produce brief rainfall rates up to 0.5–1.5 inches per hour and localized totals near 2 inches, raising urban flash‑flood risk.
- Travel and the evening commute are most at risk because slow storms and poor drainage can cause rapid runoff and downed trees or power lines that lead to outages and road closures.