Flood Preparedness Checklist

This site stays free thanks to small commissions from links like the ones below — it never costs you anything extra, and it never changes what we recommend. As an Amazon Associate we earn from qualifying purchases. Learn more.

Just six inches of fast-moving flood water can knock an adult off their feet, and a foot of water can float a car — flood danger is routinely underestimated because water doesn’t look as dramatic as fire or wind. This flood preparedness checklist covers what actually matters.

Quick answer

Know your flood risk zone, never drive through flooded roads (turn around, don’t drown), keep important documents and valuables elevated or waterproofed, and have an evacuation plan with a route that doesn’t rely on low-lying roads that flood first.

Know your flood risk

Check FEMA’s flood map service for your address to understand your actual flood zone designation — many people underestimate their risk because they don’t live near an obvious body of water, but flash flooding can occur far from rivers and coastlines after heavy rain.

“Turn around, don’t drown”

This is the single most important flood safety message: never drive through flooded roads. Water depth is deceptive, road surfaces can be washed away beneath the water, and just 12 inches of moving water can carry away most vehicles. More people die from driving into flood water than any other flood-related cause.

Protecting documents and valuables

• Store important documents (ID, insurance papers, deeds) in a waterproof container, ideally elevated above expected flood levels.
• Keep digital copies of key documents in cloud storage, accessible even if physical copies are damaged.
• Move valuables and sentimental items to higher floors if flooding is forecast and time allows.

Home protection measures

Sandbags or flood barriers at doorways can reduce water intrusion for moderate flooding, though they won’t stop severe flooding. Elevate utilities (electrical panels, water heaters) above expected flood levels if you’re in a known flood-prone area and renovating. Know how to shut off electricity and gas if flooding is approaching your home.

Evacuation planning

Identify evacuation routes that avoid low-lying roads and underpasses, which flood first and fastest. Know multiple routes, since your primary route may become impassable. Leave early when evacuation is recommended — waiting until roads are already flooding is far more dangerous than leaving with extra time to spare.

After a flood

Don’t return home until officials say it’s safe — standing water can hide hazards, structural damage, and contamination. Avoid wading through flood water, which can carry sewage, chemicals, and debris. Document damage with photos before cleanup for insurance purposes, and be cautious of mold growth that develops quickly in water-damaged areas.

Frequently asked questions

Why is driving through flood water so dangerous?

Water depth is deceptive and road surfaces can be washed away beneath it — just 12 inches of moving water can carry away most vehicles.

How do I find out my actual flood risk?

Check FEMA’s flood map service for your specific address — many people underestimate their risk if they don’t live near an obvious body of water.

Should I keep physical or digital copies of important documents?

Both — waterproof physical copies elevated above expected flood levels, plus digital copies in cloud storage as backup.

Do sandbags actually work for flood protection?

They reduce water intrusion for moderate flooding but won’t stop severe flooding — they’re a helpful measure, not a complete solution.

When should I evacuate if flooding is forecast?

As early as recommended, not waiting until roads are already flooding — extra lead time is far safer than a delayed evacuation.

Is flood water safe to wade through after a storm?

No, it can carry sewage, chemicals, and debris, and may hide structural hazards or sharp objects.

Bottom line

Know your actual flood risk, never drive through flooded roads, protect documents and valuables with waterproofing and elevation, and evacuate early when recommended rather than waiting to see how bad it gets.

This article is for general informational purposes only. Sources: FEMA flood preparedness guidance; National Weather Service flood safety recommendations.