San Juan County
Flood Watch issued July 20 at 10:33PM MST until July 21 at 10:00PM MST by NWS Flagstaff AZ
* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of east central, north central, northeast, and west central Arizona, including the following areas, in east central Arizona, Northern Gila County. In north central Arizona, Black Mesa Area, Coconino Plateau, Eastern Mogollon Rim, Grand Canyon Country, Kaibab Plateau, Little Colorado River Valley in Coconino County, Marble and Glen Canyons, Northeast Plateaus and Mesas Hwy 264 Northward, Northeast Plateaus and Mesas South of Hwy 264 and Western Mogollon Rim. In northeast Arizona, Little Colorado River Valley in Apache County, Little Colorado River Valley in Navajo County and White Mountains. In west central Arizona, Yavapai County Mountains. * WHEN...From Tuesday morning through Tuesday evening. * IMPACTS...Flash flooding will be possible in creeks, normally dry washes, swimming holes, and over recently burned areas. Raging killer currents will be possible in side canyons and narrow slot canyons. Low-water crossings may be flooded. * ADDITIONAL DETAILS... - Deep monsoon moisture in place across northern Arizona will lead to storms capable of producing rainfall in excess of 2 inches per hour, resulting in an enhanced risk of flash flooding. - Additional information is available at weather.gov/flagstaff.
Flood Watch issued July 20 at 12:15PM MDT until July 22 at 3:00AM MDT by NWS Salt Lake City UT
* WHAT...Flash flooding caused by excessive rainfall is 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, Wasatch Plateau/Book Cliffs, Western Millard and Juab Counties, 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, Southwest Utah and Zion National Park. This includes recent burn scars such as Cottonwood, Silver King, Forsyth, France Canyon, Monroe Canyon. * WHEN...From Tuesday afternoon through late Tuesday night. * IMPACTS...Excessive rainfall may result in flooding of slot canyons, normally dry washes, slick rock areas, recent burn scars including Forsyth, France Canyon, Cottonwood, Silver King, and Monroe Canyon, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - http://www.weather.gov/safety/flood
Special Weather Statement issued July 21 at 12:10AM MDT by NWS Salt Lake City UT
At 1209 AM MDT, Doppler radar was tracking strong thunderstorms along a line extending from 12 miles north of Ticaboo to 11 miles southwest of Halls Crossing to near Rainbow Bridge South Trailhead. Movement was west at 30 mph. HAZARD...Wind gusts of 50 to 55 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Halls Crossing, Bullfrog, Glen Canyon National Recreation Area, Ticaboo, Rainbow Bridge South Trailhead, Labyrinth Canyon, Lake Powell, and Dangling Rope Marina. This storm will be capable of producing strong gusty winds on Lake Powell. This will lead to a sudden increase in waves and very choppy waters which will result in hazardous boating conditions. Boaters are urged to seek safe harbor if possible. This includes Utah Route 276 between mile markers 12 and 34.
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