Nephi Warnings, Watches and Advisories

When a severe thunderstorm warning is issued, the storm may produce damaging winds, large hail, dangerous lightning, and heavy rain. In some cases, heavy rainfall produced by a severe storm can also lead to flash flooding. Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.

Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Nephi.

Use the Radar Maps link provided to understand the trajectory of a storm.

Flash Flood Warning issued August 31 at 8:07AM MDT until August 31 at 9:30AM MDT by NWS Salt Lake City UT

At 807 AM MDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 0.25 and 0.75 inches of rain have fallen. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar indicated. IMPACT...Life threatening flash flooding of slot canyons, normally dry washes, streams, creeks, and rivers. Some locations that will experience flash flooding include... Buckskin Gulch, Wire Pass, and the Paria River Canyon.

Flood Watch issued August 30 at 9:47PM MDT until August 31 at 9:00PM MDT by NWS Salt Lake City UT

* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of Utah, including the following areas, Castle Country, Central Mountains, Eastern Juab/Millard Counties, San Rafael Swell, Sanpete Valley, Sevier Valley, Bryce Canyon Country, Capitol Reef National Park and Vicinity, Glen Canyon Recreation Area/Lake Powell, South Central Utah, Southern Mountains, Upper Sevier River Valleys, Western Canyonlands, Lower Washington County and Zion National Park. * WHEN...Through Monday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, dry washes, slot canyons, and other low-lying and flood-prone locations such as slickrock areas and recent burn scars including Widemouth 2, Cottonwood, Monroe Canyon, Forsyth, and other recent burn scars. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Deep moisture will continue to support thunderstorms with heavy rainfall across the watch area through Monday evening, particularly during the afternoon and evening. Some areas, particularly across the Sanpete and Sevier Valleys as well as Castle Country, have already seen heavy rainfall and will be even more prone to flooding given saturated soils. - http://www.weather.gov/safety/flood

Flood Watch issued August 30 at 7:37PM MDT until September 1 at 12:00AM MDT by NWS Grand Junction CO

* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of Colorado, including the following areas, Central Colorado River Basin, Central Gunnison and Uncompahgre River Basin, Central Yampa River Basin, Debeque to Silt Corridor, Flat Tops, Four Corners/Upper Dolores River, Gore and Elk Mountains/Central Mountain Valleys, Grand Valley, Grand and Battlement Mesas, Northwest San Juan Mountains, Paradox Valley/Lower Dolores River, Roan and Tavaputs Plateaus, Southwest San Juan Mountains, Uncompahgre Plateau and Dallas Divide, Upper Gunnison River Valley and West Elk and Sawatch Mountains and Utah, including the following areas, Arches/Grand Flat, Canyonlands/Natural Bridges, La Sal and Abajo Mountains, Southeast Utah and Tavaputs Plateau. * WHEN...Through Monday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Recent burn scars will also be especially susceptible and these include the Lee and Elk RX, Gold Mountain and Elk, Ferris, and Babylon burn scars to name a few. * ADDITIONAL DETAILS... - Monsoonal moisture will remain across the area through Monday evening and will support thunderstorms and showers with heavy rainfall across the watch area. Several rounds of heavier rain are expected increasing the chance for flash flooding especially in our more susceptible areas. - http://www.weather.gov/safety/flood