The National Weather Service issued a flash flood potential rating for Southern Utah on Sunday, September 6, 2026, warning that flash flooding is expected or possible in various slot canyons, dry washes, and small streams throughout the region.
Regional Risk Assessments
According to a report from the National Weather Service Salt Lake City, the flash flood potential for the region varied significantly across different locations on Sunday, September 6, 2026. The agency's Automated Hydrologic Observation Station report categorized the risk levels for several national parks and recreation areas, noting that certain areas faced a higher probability of flooding than others.
Areas Facing Probable Flooding
The National Weather Service identified several locations where flash flooding was rated as probable on September 6, 2026. These areas include Bryce Canyon National Park, Grand Staircase-Escalante West, Snow Canyon / Red Cliffs, and Zion National Park. In these specific locations, the agency noted that some slot canyons, dry washes, and small streams were expected to experience flash flooding.
Areas With Possible Flooding
Other locations throughout Southern Utah were assigned a rating of possible for flash flooding on the same day. The National Weather Service reported that flash flooding might occur in some slot canyons, dry washes, and small streams in Arches National Park, Canyonlands National Park, Capitol Reef National Park, Glen Canyon National Rec Area, Grand Staircase-Escalante East, Natural Bridges NM, Grand Gulch, and the San Rafael Swell.
Forecasted Risk Reduction
Looking ahead to the following days, the National Weather Service indicated a significant decrease in flash flood risk. The agency reported that flash flooding was not expected for any of the listed locations on Monday, September 7, 2026, or Tuesday, September 8, 2026.
