The Northeast U.S. is under multiple severe weather alerts as thunderstorms, flash floods, and potential tornadoes loom over the weekend. A severe thunderstorm watch has been issued for areas in Ohio and parts of New York, while New Jersey is facing a tornado watch as heavy rain and wildfires from Canada contribute to declining air quality. Flash flooding has already impacted NYC, prompting emergency management to urge residents to prepare for dangerous conditions, including high winds and further storms expected to disrupt travel and daily activities. The weather forecast remains grim, with millions on alert, as severe storms threaten to bring damaging winds and flooding across the region.