Flood watches issued for central and southern Utah ahead of Wednesday storms
Watches begin October 21; southeastern Utah’s watch extends into Friday, October 23.
The National Weather Service issued flood watches Tuesday, October 20, for parts of central, southern and eastern Utah as heavy rain threatens washes, canyons and backcountry roads. The watch periods begin Wednesday, October 21, and vary by area. [1][2]
When the watches apply
The NWS watch for central and southern Utah begins at 6 a.m. Wednesday for the Central Mountains, Lower Washington County, Zion National Park, Southern Mountains, Upper Sevier River Valleys, Bryce Canyon Country, South Central Utah, Capitol Reef and vicinity, Western Canyonlands, and Glen Canyon/Lake Powell. Castle Country and the San Rafael Swell join at noon. Both periods end at midnight Thursday night, as Friday, October 23, begins. All times are MDT. [1]
A separate Grand Junction office watch covers southeastern Utah, Arches/Grand Flat, Canyonlands/Natural Bridges, and the La Sal and Abajo Mountains from noon Wednesday until noon Friday. Its listed communities include Moab, Blanding and Monticello. [2]
Prepare for changing conditions
Forecasters warn that runoff could flood dry washes, slot canyons, slickrock and recent burn scars, and make backcountry roads impassable. The agency advises backcountry travelers to have alternative routes available. [1]
A watch means conditions favor flooding; it does not establish that flooding is happening or certain. A warning means flooding is imminent or occurring. Check the latest NWS alerts before travel and be ready to act if warnings are issued. [3]
Sources
- National Weather Service Salt Lake City · Flood watches issued October 20, 2026, 11:29 a.m. MDT forecast.weather.gov
- National Weather Service Grand Junction · Flood watch issued October 20, 2026, 11:13 a.m. MDT forecast.weather.gov
- National Weather Service · Flood watch and warning definitions weather.gov
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