The heavy rainfall poses significant risks to low-lying areas, roads, and streams, with flash flooding already reported in some locations. Residents in affected areas, including Niagara and Cattaraugus counties, are advised to avoid flooded roadways and heed the warning: 'Turn around, don't drown.' Beach hazards have also been issued along Lakes Erie and Ontario, warning of dangerous swimming conditions due to strong currents. The NWS has highlighted a marginal risk for severe thunderstorms, with damaging winds and heavy rain as primary threats.