Understanding What a Storm Surge Is
A storm surge is a sudden rise of seawater caused by strong winds and low pressure during storms. This surge pushes water inland, often leading to coastal flooding.
How a Storm Surge Forms
Powerful winds from a storm or hurricane push ocean water toward the shore. At the same time, low air pressure allows the sea level to rise even higher, creating a surge that can spill over beaches and barriers.
Examples of Storm Surge Effects
Storm surges can create dramatic and dangerous coastal changes.
- Flooded streets and neighborhoods near the shoreline
- Erosion of beaches and sand dunes
- Damaged ports, marinas, and coastal structures
- Saltwater reaching freshwater areas or farmland
Why Storm Surges Matter
They are one of the most hazardous parts of major storms. Understanding storm surges helps communities prepare, improve evacuation plans, and reduce damage to coastal environments.
Key Characteristics of Storm Surges
- Driven by strong winds and low pressure
- Cause sudden rises in sea level
- Lead to severe coastal flooding
- Occur during hurricanes, cyclones, and intense storms
The Simple Takeaway
A storm surge is a rapid rise of ocean water pushed ashore by storm winds. It creates dangerous flooding and is often the most destructive part of coastal storms.