To bridge the gap between outlook products and flash flood watches and/or warnings, the National Weather Service Salt Lake City office produces a product called the Flash Flood Potential Rating (FFPR). The FFPR is issued twice daily during the summer and fall seasons, roughly from mid May to late October, under the identifier of SLCRRASLC, WMO Header SRUS85.

The FFPR provides a qualitative rating, indicative of the potential for flash flooding over the next two days. Along with outlooks, flood watches, and forecasts, the FFPR should be used as a planning tool before venturing into slot canyons and washes.

Locations for which the FFPR is produced include: Arches National Park, Bryce Canyon National Park, Canyonlands National Park, Capitol Reef National Park, Glen Canyon National Recreation Area, Grand Staircase-Escalante National Monument, Natural Bridges National Monument/Grand Gulch, San Rafael Swell, and Zion National Park.

To view the FFPR product during the issuance season, go to http://www.wrh.noaa.gov/slc/river and click on the "Flash Flood Potential" link.