During tornadoes, many people instinctively seek shelter under overpasses, believing they provide safety from the storm. This common misconception can actually put lives at greater risk.
When tornado winds reach high speeds, the open space beneath an overpass can create a wind tunnel effect, increasing wind speed and drawing debris into that area.
Overpasses do not protect people from the intense winds and flying debris that come with a tornado. In fact, numerous tornado survivors have reported that hiding under an overpass exposes them to more danger.
A study of past tornado events shows that those who sheltered there faced significant threats from both the wind and projectiles, which can be deadly.
Understanding the safest actions during a tornado is critical.
Seeking sturdy shelter in a basement or a small, windowless interior room remains the best advice. With the right information, people can make better choices and stay safer during severe weather events, avoiding the risks associated with seeking refuge under overpasses.
Understanding the Dangers of Taking Shelter under Overpasses
Seeking shelter under an overpass during a tornado may seem safe, but it poses significant risks. Two key dangers stand out: the wind tunnel effect can drastically increase wind speeds, and the risk of flying debris increases dramatically, making this form of shelter perilous.
The Wind Tunnel Effect and Increased Wind Speeds
When a tornado passes over an overpass, it creates a wind tunnel effect. This occurs as tornado winds funnel through the structure, causing the wind speeds to rise significantly.
Those sheltering under the bridge may experience winds that are much stronger than outside.
Research shows that instead of offering protection, being in an overpass can expose individuals to gusts exceeding 100 mph. Such winds can easily knock people down or cause serious injuries.
It is crucial to recognize that the very act of seeking refuge under these structures can lead to higher risks.
Potential for Flying Debris and Increased Risk
Another critical danger is the potential for flying debris. Tornadoes can lift and hurl objects at incredible speeds, turning them into dangerous projectiles.
When people are sheltered under an overpass, they are not only exposed to high winds but also to this debris.
Debris can include anything from tree branches to structural materials. The confined space of an overpass increases the likelihood of a person being struck.
Studies show that many injuries during tornadoes come from debris impacts rather than the wind itself.
In desperate moments, it becomes vital to choose a safer location than an overpass, as the risk of injury can be much higher.
For more on the dangers of wind during tornadoes, see articles on wind.
Recommended Tornado Safety Practices
The best way to stay safe during a tornado is to seek shelter in secure places and pay attention to warnings from authorities. Knowing where to go and what actions to take can make a critical difference.
Seeking Suitable Shelter
When a tornado warning is issued, finding appropriate shelter is vital.
Ideal shelters include basements, interior rooms on the lowest floor, or designated tornado shelters. If you do not have access to these options, consider staying in a sturdy building away from windows.
While some may think hiding under an overpass is safe, it can actually be very dangerous. The wind can funnel under the bridge, increasing its speed and pressure. The National Weather Service and the Storm Prediction Center recommend against this.
Always choose a strong structure or underground shelter to protect yourself from severe weather.
Heeding Warnings from Weather Authorities
Listening to weather warnings is crucial for staying safe during tornadoes. The National Weather Service issues alerts based on real-time data.
It’s important to understand the different types of warnings: a tornado watch means conditions are favorable, while a tornado warning indicates that a tornado has been sighted or detected.
Residents should have a reliable way to receive alerts, such as a weather radio, smartphone apps, or local television. Keeping informed helps people make timely decisions about seeking shelter.
Ignoring these warnings can lead to dangerous situations. Always trust verified information from meteorologists and local officials during severe weather events.