Flash Flood Safety Tips from Scratch

Last updated: 2023-09-06

Flash floods can occur with little warning, making it critical to understand the necessary safety precautions. We recommend taking immediate action to move to higher ground and avoid flash flood zones, especially during warnings or heavy rainfall.

Summary

• Flash floods can develop rapidly and are often unpredictable.
• Move to higher ground immediately when flash flood warnings are issued.
• Avoid driving or walking through flooded areas.
• Prepare your home and family ahead of time to mitigate risks.

What are Flash Floods and Why are They Dangerous?

Flash floods are sudden floods that can occur within minutes or hours of heavy rainfall, particularly in urban areas. They can be life-threatening and cause significant property damage. Fast-moving water can sweep away cars and pose risks to individuals who may underestimate its force. For example, just six inches of moving water can knock you off your feet (NOAA).

What to Do When a Flash Flood Warning is Issued

If a flash flood warning is in effect, it indicates that flooding is occurring or imminent in your area. Here’s what you should do:

1. Move to Higher Ground: Relocate to a safer area as soon as possible. Walking up to higher ground is advised over driving vehicles out of flooded areas (National Weather Service).
2. Stay Informed: Make sure to monitor local news updates and weather alerts through reliable sources.
3. Avoid Flood Areas: Do not attempt to drive or walk through flooded areas, especially if the depth is unknown. As little as 1.5 feet of water can flip vehicles or sweep them away (National Weather Service).

Pre-Flash Flood Preparation

Being prepared can make a significant difference:

• Create an Emergency Plan: Have a plan that outlines where to go and how to communicate with family members during a flash flood.
• Kit for Emergency Supplies: Prepare an emergency kit that includes water, non-perishable food, a flashlight, batteries, and a first-aid kit.
• Stay Updated on Warnings: Use weather apps like Clime to receive real-time alerts and forecasts to keep you informed on potential flash floods in your area.

Understanding Floodwater Hazards

Flash floods can occur in areas where you may not expect them. Understanding the depth and speed of the water is essential:

• Six Inches: Just six inches of rapidly moving water can knock an adult off their feet (NOAA).
• Driving Dangers: Never attempt to drive into water of unknown depth, as it can lead to dangerous situations. Driving through floodwaters can also damage your vehicle.

Nighttime Safety Measures

Flash floods at night are particularly hazardous because it’s difficult to see the danger until it’s too late. Here are some tips for nighttime:

• Stay Alert: Be extra vigilant during evenings and nights when flash floods are more difficult to detect. Make sure to have a reliable flashlight and stay updated via your weather app for any alerts.
• Limit Travel: If possible, stay home during severe weather alerts, especially after dark.

What Should You Avoid?

There are specific actions to avoid during flash flood scenarios:

• Do Not Walk or Drive Through Flooded Areas: As previously mentioned, never walk or drive into water; it's impossible to know its depth, and it can be extremely dangerous.
• Don't Ignore Warnings: Treat flash flood warnings seriously. Ignoring them could put your life at risk.
• Do Not Hesitate to Evacuate: If advised by authorities, evacuate immediately to ensure your safety.

What We Recommend

• Install Clime or similar weather apps to gain access to real-time alerts and forecasts for your area.
• Always have an emergency plan ready that includes routes to higher ground.
• Assemble an emergency kit that is easily accessible during bad weather.
• Be cautious and stay informed—your safety depends on it.