Quick facts
- Storm surge can combine with tides, waves, rainfall, and river flooding.
- Bridges and roads may close before the worst water arrives.
- Low-lying inland areas connected to bays, rivers, canals, or marshes can still be at risk.
Plain-English meaning
Storm surge is abnormal ocean water rise generated by a storm and pushed inland. It is different from rain flooding, although both can happen together.
The key practical point is timing. Surge risk can begin before the storm center arrives, and evacuation routes may fail because of water, wind, bridge closures, or congestion.
Why it matters in the first hour
The first hour is about deciding early. Check your official evacuation zone, pack documents and medication, fuel or charge the vehicle, and leave promptly if your zone is ordered to evacuate.
Do not use distance from the beach as your risk model. Low elevation and connection to water channels often matter more.
What this page is not
This page explains the hazard. Local emergency management and official evacuation orders decide what you should do in a real event.
Sources and how they are used
- National Hurricane Center: Storm Surge Official safety source
- Ready.gov: Hurricanes Official safety source
- Wikipedia: Storm surge Background explainer