A Flash Flood Warning is currently in effect for Custer, Douglas, El Paso, and Mesa counties in Colorado. The warning was issued on July 28, 2026, at 3:52 PM MDT and remains active until 6:00 PM MDT on July 28, 2026. Residents and travelers in those counties should treat this alert as active and act accordingly until the expiration time has passed. The warning was issued jointly by the National Weather Service offices in Pueblo, CO, Denver, CO, and Grand Junction, CO, reflecting the geographic spread of the hazard across a wide portion of the state.
What NWS Is Telling You to Do Right Now
The National Weather Service is delivering one clear, non-negotiable message to anyone in the affected counties: turn around, don’t drown when you encounter flooded roads. This is not a suggestion to weigh against your schedule or your familiarity with a route. It is the primary life-safety directive attached to this warning.
The reason the National Weather Service emphasizes this point so directly is grounded in decades of fatality data. As the official alert states, most flood deaths occur in vehicles. Moving floodwater does not need to be deep to be deadly. As little as six inches can knock a person off their feet, and one to two feet of water can carry away most passenger vehicles. A road that looked passable moments ago can change rapidly during a flash flood event, and the water’s depth and current are nearly impossible to judge accurately from inside a car.
If you are driving anywhere in Custer, Douglas, El Paso, or Mesa County between now and 6:00 PM MDT on July 28, 2026, treat any water covering a road as a reason to stop, find an alternate route, or wait in a safe location. Do not attempt to drive through flooded intersections, low-water crossings, or any stretch of road where water is moving across the surface. The warning does not single out specific roads, which means the risk must be assumed broadly across the affected counties.
If you are already out on the road and encounter flooding, do not hesitate. Reverse, turn around, and find higher ground or a safe structure. If your vehicle becomes surrounded by rising water and you cannot safely exit by door, moving to the roof is preferable to staying inside a sinking vehicle. The core instruction from NWS is simple and worth repeating: turn around, don’t drown.
Keeping This in a Broader Preparedness Context
Flash flood warnings like this one are a reminder of why route awareness and real-time weather monitoring are core elements of any personal preparedness plan. At USRiskRadar, we regularly cover the importance of knowing your local flood-prone roads before an event begins, keeping a battery-powered or hand-crank weather radio accessible, and signing up for your county’s emergency alert system so warnings from offices like NWS Pueblo, NWS Denver, and NWS Grand Junction reach you directly. Warnings like the one in effect for these four Colorado counties on July 28, 2026, often have short windows, sometimes just a couple of hours, which means the margin between receiving information and acting on it can be razor thin. Building that awareness habit in advance is what turns an alert into a life-saving decision.
Source: National Weather Service, Pueblo CO, Denver CO, and Grand Junction CO. Flash Flood Warning effective July 28, 2026, 3:52 PM MDT through 6:00 PM MDT.
For the fundamentals that apply beyond this specific alert, see our Flood Preparedness guide.
Source: National Weather Service (NWS Pueblo CO, NWS Denver CO, NWS Grand Junction CO). Active alert data retrieved 2026-07-28 22:01 UTC via api.weather.gov.
