Flash Flood Sweeps Hikers Through Utah Slot Canyon, All Rescued Safely

An 80% rain probability was posted for Emery County before a single hiker entered Little Wildhorse Canyon on April 1. It did not stop them. A flash flood swept multiple members of a large group down the slot canyon just outside Goblin Valley State Park before the afternoon was out, and it took six agencies to bring everyone home.

Rescuers rushed to Goblin Valley State Park in southern Utah after multiple hikers were caught in flash flooding and swept down the canyon. The response drew rangers from Goblin Valley alongside the Emery County Sheriff's Office, Emery County Search and Rescue, Emery County EMS, Green River State Park, and Division of Natural Resources Law Enforcement. Rescuers described it as a "terrifying ordeal," but were able to reach the hikers and guide them out to safety. The hikers were taken back to the trailhead and treated for minor injuries. No fatalities were reported. "These hikers, along with dozens of others who braved the canyons today, were truly lucky," the park said.

The conditions that made this incident possible were not hidden. There was an 80% chance of rain in the area that Wednesday, accompanied by heavy clouds. Heavy rain moved through, water funneled into the narrows, and people were swept. The sequence took almost no time because that is exactly what slot canyons do. Their tight, sheer walls act as a pipe, concentrating runoff with almost no lead time. Rain does not even need to be falling at the trailhead: a storm hitting anywhere in the San Rafael Swell drainage upstream can push water into the lower canyon before hikers below hear anything. That upstream hazard is the go/no-go signal most casual visitors skip entirely.

Park Manager Andrew Sprafke, fielding questions from media in the aftermath, referred specific inquiries about the exact number of hikers affected to the Emery County Sheriff's Office. The number of agencies that showed up tells the story on its own.

April adds a layer of risk that catches people off guard. Flash flood season is not a July-through-September monsoon problem. Spring storms in southern Utah fire fast and carry just as much runoff as a summer cell. The April 1 incident is the clearest possible proof of that. Park officials used the incident to remind visitors to always check weather forecasts before hiking canyons, and the park's message was explicit: "Please take this as a reminder...always check weather forecasts before hiking canyons."

Before entering Little Wildhorse, run three checks the morning of your trip. Pull the weather.gov hourly forecast for the Emery County zone and treat any rain probability above 30 percent as a hard stop. Open the NWS Salt Lake City radar loop and scan for storm cells anywhere across the San Rafael Swell upstream, not just directly over the trailhead; a cell 20 miles north can push water into the narrows in under 30 minutes. Check Goblin Valley State Park's Facebook page, which serves as the fastest same-day conditions source for this specific canyon and was active with incident updates the day of the flood. On timing, enter by 8 a.m. and plan to be clear of the narrows before noon; spring convective cells build unpredictably through Utah afternoons. If you are already inside and water begins to rise or changes color, do not try to outrun it downstream. The Bell Canyon junction, roughly at the midpoint of the loop, is your primary exit to open slickrock and elevation above flood level. Before the narrows begin, identify the ledge breaks and low-wall sections where you can scramble clear of the canyon floor, and commit those locations to memory before the water makes the decision for you.