Forecasters have warned that Hurricane Erin will threaten large portions of the US East Coast on Wednesday, bringing the risk of storm surges, rip currents, and coastal flooding.The Category 2 hurricane, currently moving across the Atlantic, is not predicted to make landfall in the US. However, officials have cautioned that the storm could still trigger dangerous waves, flooding, and potential road closures.North Carolina is expected to experience the most severe effects, while no-swimming advisories have been extended to beaches as far north as Delaware and New Jersey.