Denver is known for its vibrant city life, stunning mountain views, and… unpredictable weather. Flash floods and severe storms have become increasingly frequent and dangerous, causing significant property damage and putting lives at risk. In fact, Colorado experienced nearly $1 billion in flood-related damages in the last decade alone. For Denverites, understanding how to stay safe during these events isn’t just smart—it’s essential.
Denver’s unique weather patterns make it prone to fast-moving storms and flash floods, which can wreak havoc in a matter of minutes. This blog covers everything you need to know, from why these storms hit so hard to how you can protect yourself, your family, and your property.
TLDR – Quick Guide
- TLDR – Quick Guide
- If you’re short on time, here’s a quick summary of the main tips to stay safe during Denver’s flash floods and severe storms:
- Stay Informed: Keep an eye on weather alerts and updates.
- Prepare Your Home: Ensure gutters are clear, and consider installing a sump pump.
- Emergency Kit: Have a kit ready with essentials like water, batteries, and a first aid kit.
- Safe Locations: Know where the higher ground is and avoid flood-prone areas.
- Driving: Never attempt to drive through flooded roads.
- Insurance Check: Make sure your insurance covers flood damage.
Jump to:
Detailed Breakdown: How to Prepare and Respond to Flash Floods and Severe Storms
1. Understand Denver’s Unique Storm Patterns
Denver is positioned in a way that makes it vulnerable to both flash floods and severe storms. While most of the year is dry, intense thunderstorms can form quickly due to the clash of cold mountain air and warm air from the plains. When these storms hit, they dump huge amounts of rain in a short time, leading to flash flooding.
In September 2013, the state experienced one of its most catastrophic floods, causing 8 fatalities and displacing thousands. Denver’s urban setting can amplify these effects, as concrete and asphalt don’t absorb water, leading to fast-rising floodwaters.
2. Stay Alert with Weather Updates
Having reliable sources for weather updates is critical. You can get real-time storm alerts through apps like NOAA Weather Radio or Denver’s local weather services. Sign up for the Wireless Emergency Alerts (WEA) program, which sends emergency texts about flash floods, severe thunderstorms, and other extreme weather conditions.
Make a habit of checking the forecast during peak storm months (typically May to September) and be prepared to act if conditions worsen.
3. Home Preparation Tips
Your home is your biggest asset, and it’s crucial to safeguard it against floodwaters. Here are some simple yet effective steps:
- Clear Your Gutters: Water can pool and cause roof damage or flooding if gutters are blocked.
- Install a Sump Pump: For homes with basements, sump pumps can divert water and prevent it from seeping inside.
- Seal Basement Windows and Doors: Use waterproof sealants to keep floodwater out.
- Create Barriers: Consider sandbags or other flood barriers if you’re in a flood-prone area.
Also, make sure to review your home insurance. Standard policies don’t usually cover floods, so you may need to get additional flood insurance.
4. Have an Emergency Kit
A good emergency kit is a lifesaver during any natural disaster. Some key items to include are:
- Water (enough for 3 days, about a gallon per person per day)
- Non-perishable food
- Batteries, flashlights, and a battery-powered radio
- First aid supplies
- Important documents like IDs, insurance papers, and medical records in a waterproof bag
5. Know Safe Routes and Flood-Prone Areas
The most dangerous thing you can do during a flash flood is underestimate how fast water can rise. If a flood warning is issued, move to higher ground immediately. Familiarize yourself with Denver’s low-lying areas, especially near the Platte River, and stay clear of them during heavy rain.
If you’re driving and encounter a flooded road, turn around. Even 6 inches of water can stall your car, and 2 feet can carry it away. Always heed the saying: “Turn Around, Don’t Drown.”
6. After the Storm: Recovery Steps
Once the storm has passed, it’s time to assess the damage and begin recovery:
- Avoid Flood Waters: They often contain contaminants, debris, or hidden hazards like sharp objects or downed power lines.
- Check for Structural Damage: Before re-entering your home, make sure it’s safe. If you’re unsure, call a professional.
- Document Damage: Take photos for insurance claims.
- Clean Safely: Wear gloves, boots, and a mask when cleaning up water-damaged areas. Throw out any food that came into contact with floodwater.
Key Takeaways
- Denver’s storm season can be unpredictable, but preparation is key.
- Stay informed through weather alerts and updates.
- Protect your home by clearing gutters, installing a sump pump, and sealing potential entry points for water.
- Know your evacuation routes and avoid driving through flooded areas.
- After a flood, stay cautious and prioritize safety during clean-up.
FAQs
How common are flash floods in Denver?
Flash floods in Denver are relatively common during the summer storm season, from May to September. The city’s geography and rapid weather changes make it vulnerable to sudden, heavy rainfall.
What areas of Denver are most at risk for flooding?
Low-lying areas near the Platte River and parts of downtown are particularly prone to flooding. Areas with poor drainage systems or lots of asphalt are also more susceptible to flash floods.
How can I check if my home is in a flood zone?
You can use FEMA’s Flood Map Service Center to see if your home is in a flood zone. Additionally, local Denver government websites offer detailed flood risk maps for different neighborhoods.
What should I do if I get stuck in my car during a flash flood?
If you’re trapped in your car during a flood, try to move to higher ground immediately. If water starts rising, abandon the vehicle and move to safety. Never stay inside a submerged car.
Is flood damage covered by my homeowners insurance?
Flood damage is typically not covered by standard homeowners insurance policies. You’ll need a separate flood insurance policy, which you can get through the National Flood Insurance Program (NFIP) or private insurers.