Salt Lake City, Utah – Monsoon-driven storms are ramping up flash flood concerns again today across Utah and parts of southwest Wyoming, with Northern Utah, Castle Country, the San Rafael Swell, and Capitol Reef among the most vulnerable. Hikers and travelers should avoid slot canyons, dry washes, and burn scar areas, where rapid runoff could become life-threatening by afternoon.
According to the National Weather Service in Salt Lake City, a Moderate (2/4) flood risk is in effect through Wednesday evening. The highest threat zones include portions of Northern and Eastern Utah, especially rugged terrain in Grand, Emery, Wayne, and Cache counties. Forecasters warn that any storms developing over these areas could unleash brief but intense rainfall, overwhelming dry ground and narrow canyons.
Western Canyons and Capitol Reef National Park remain under close watch. Flash flooding in these regions can happen with little warning, especially if runoff funnels through steep terrain or recently burned hillsides. Officials urge the public to stay off unpaved roads during storms, charge devices, and keep emergency kits ready if evacuation is needed.
Flash flood warnings may be issued with little lead time this afternoon and evening. The threat may ease by early Thursday, but additional alerts are possible if storms persist.
