Most of the rain is forecast to fall in as little as 3-6 hours. A small chance of heavier rain and flooding could pose "an elevated threat to life and cause significant disruptions to transportation, flood underground infrastructure and basements and first floors of residences and businesses," with water rescues needed, the weather service said.

Gov. Kathy Hochul on Thursday declared a state of emergency for Long Island and other New York counties amid flash flooding caused by a powerful rainstorm moving through our area. NewdsayTV's Ken Buffa reports.