Introduction to Storm Surge and Evacuation
It is a common misunderstanding that if you live in the path of an approaching tropical system, you should evacuate. It may be safer, however, to stay put and ride out the storm, as long as you’re in a sturdy structure and not in a flood zone.
You may have heard the saying, run from the water, hide from the wind. According to the National Oceanic and Atmospheric Administration, over the last decade, water has accounted for 85-90% of direct fatalities from tropical systems. When a storm is approaching, most evacuation orders are issued for areas where storm surge is a threat or for those near a body of water that is prone to flooding. Evacuation orders are not issued due to strong winds.
Understanding Storm Surge
Storm surge is defined by the National Hurricane Center as an abnormal rise of water generated by a storm. This rise in water level can cause extreme coastal flooding as a tropical system approaches and moves inland. Storm surge can even travel up rivers and canals and impact areas well away from the coast.
Storm surge is mainly caused by the strong winds surrounding a storm. Many factors influence how large a storm surge can get and make it difficult to forecast. Some factors include the speed and intensity of the storm, the angle at which it approaches the coast, and the slope of the ocean floor. Once the surge “touches” the ocean floor, it begins to push up and above the normal sea level. If the slope is wide and shallow, there’s more time for the increase in water and the storm surge will be larger.
The Importance of Evacuation Orders
It’s essential not to underestimate the power of water. Once a storm surge begins, trying to escape it is extremely dangerous and potentially impossible. That’s why evacuating early is crucial. Evacuation orders will be issued in advance of a storm, ideally forty-eight hours prior to the onset of tropical-storm-force winds. Heed the evacuation orders and get out of harm’s way. Not every evacuation zone will be asked to leave, so knowing which one you live in will help get you to safety quickly.
Evacuation Zones Explained
If you are not in an evacuation zone and live in a sturdy structure, you don’t necessarily need to leave. Not having to deal with traffic, gas shortages or clogged hotels would be better for you if you have all the supplies you need to ride the storm out. Knowing your evacuation zone is vital to making an informed decision about whether to stay or go.
Preparation is Key
Remember, don’t be scared, be prepared. Having a plan in place and being prepared for a storm can make all the difference. Make sure you have all the necessary supplies, including food, water, and medication, and stay informed about the storm’s progress.
Conclusion
In conclusion, while evacuation is sometimes necessary, it’s not always the best option. Understanding storm surge and evacuation zones can help you make an informed decision about whether to stay or go. By being prepared and knowing your evacuation zone, you can keep yourself and your loved ones safe during a tropical storm.
FAQs
- Q: What is storm surge?
A: Storm surge is an abnormal rise of water generated by a storm, causing extreme coastal flooding. - Q: Why are evacuation orders issued?
A: Evacuation orders are issued for areas where storm surge is a threat or for those near a body of water that is prone to flooding. - Q: How can I find out if I’m in an evacuation zone?
A: You can check with your local authorities or emergency management website to find out if you’re in an evacuation zone. - Q: What should I do if I’m not in an evacuation zone?
A: If you’re not in an evacuation zone and live in a sturdy structure, you don’t necessarily need to leave, but make sure you have all the necessary supplies to ride the storm out.
Originally Published: May 29, 2025 at 2:43 PM EDT
