A flash flood warning for southern Utah, covering Zion National Park and areas of Springdale, expired at 6:45 PM MDT on Thursday, Oct. 22, 2026, after thunderstorms moved through the region. The National Weather Service in Salt Lake City had issued the alert due to radar-indicated thunderstorms that posed a life-threatening risk to hikers and campers in slot canyons and dry washes.
Storms Move Through Zion
The National Weather Service in Salt Lake City issued the warning at 3:41 PM MDT on Thursday, Oct. 22, 2026, noting that Doppler radar indicated thunderstorms were moving into Zion National Park from the south. At the time of the alert, up to 0.25 inches of rain had fallen from previous showers over the preceding half hour, and officials warned that additional rainfall amounts of up to 0.75 inches were possible as the storms moved through the area.
Life-Threatening Flood Risks
The warning specifically targeted West Central Kane County in southern Utah and East Central Washington County in southwestern Utah. According to the National Weather Service, the storm system created a considerable damage threat, with the potential for life-threatening flash flooding in slot canyons, normally dry washes, creeks, and streams. The agency advised that river banks and culverts could become unstable and unsafe during the event.
Safety Precautions Issued
During the warning period, the National Weather Service urged travelers to move to higher ground immediately and to stay away from water sources to avoid being swept away. Officials noted that heavy rains can turn normally dry washes and creeks into killers, advising campers and hikers to avoid streams or creeks entirely during such weather events.
Historical Flooding Context
The recent weather event follows a history of significant flooding in the state. On Aug. 23, 2024, Utah Governor Spencer J. Cox issued an executive order declaring a state of emergency due to flooding that had caused significant damage to homes and public infrastructure across various Utah communities during the preceding weeks.
Impact of Burn Scars
In that 2024 emergency declaration, Governor Cox noted that wildfire burn scars and high temperatures had contributed to hardened ground surfaces, which increased the risk of flash floods and debris flows. While observing damages firsthand in Sanpete County, the Governor stated that Utahns across the state had been similarly impacted by devastating flooding.
Emergency Measures
The 2024 executive order was designed to facilitate the protection of people and property from the impacts of flooding and potential flooding. That specific emergency declaration was set to remain in effect for 30 days from its issuance.
Regional Vulnerability
The recent flash flood activity in Kane and Washington counties underscores the ongoing vulnerability of southern Utah's geography to rapid weather changes and intense rainfall.
