Meteorologists are issuing urgent warnings as a massive super storm is expected to hit the United States, bringing catastrophic flooding and severe weather conditions.

Forecast models predict heavy rainfall, powerful winds, and potential tornadoes across multiple states, with some areas likely to experience record-breaking downpours. Authorities are urging residents in low-lying and coastal regions to prepare for possible evacuations, as rivers and drainage systems may overflow.

“This could be one of the worst flooding events in decades,” warned a FEMA spokesperson, emphasizing the need for immediate action.

The storm system, fueled by unusually warm ocean temperatures and atmospheric instability, is expected to impact both the East and West Coasts, as well as parts of the Midwest.

Cities with poor drainage infrastructure are at particularly high risk of flash floods, which can develop rapidly and with little warning. Emergency management teams are already staging sandbags, rescue equipment, and relief supplies in vulnerable areas. Resident