Deep moisture remained in place over Utah, resulting in continued flash flooding in central and southern Utah, particularly at burn scars. In northern Utah, several thunderstorms became severe, producing gusty winds and large hail.

Thunderstorm Wind in DAVIS, UTAH
From 24-AUG-13 16:21:00 to 24-AUG-13 16:21:00 (MST-7)
Location: LAYTONA
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Strong thunderstorm winds knocked down several trees on Fairfield Road in Layton.

Hail in DAVIS, UTAH
From 24-AUG-13 16:19:00 to 24-AUG-13 16:21:00 (MST-7)
Location: LAYTONA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Multiple members of the public reported nickel to quarter sized hail falling over Layton and Kaysville.

Thunderstorm Wind in TOOELE, UTAH
From 24-AUG-13 14:10:00 to 24-AUG-13 14:10:00 (MST-7)
Location: GOLD HILL
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The West Salt Flat sensor in the Dugway Proving Ground mesonet recorded a maximum wind gust of 64 mph.

Thunderstorm Wind in TOOELE, UTAH
From 24-AUG-13 15:25:00 to 24-AUG-13 15:25:00 (MST-7)
Location: KNOLLS
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Diddle Knoll sensor in the Dugway Proving Ground mesonet recorded a maximum wind gust of 64 mph.

Flash Flood in WASHINGTON, UTAH
From 24-AUG-13 16:00:00 to 24-AUG-13 18:00:00 (MST-7)
Location: NEW HARMONY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Significant flash flooding was reported across much of the western side of Zion National Park, including in the Subway area, in Kolob Terrace, and along Taylor Creek in the Kolob area.

Flash Flood in KANE, UTAH
From 24-AUG-13 20:30:00 to 24-AUG-13 21:30:00 (MST-7)
Location: GLEN CANYON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flash flooding was reported along Wahweap Creek.

Flash Flood in WAYNE, UTAH
From 26-AUG-13 12:40:00 to 26-AUG-13 14:40:00 (MST-7)
Location: NOTOM
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Small flash floods were reported in Capitol Reef National Park, but the Fremont River rose significantly when all of these washes combined into the main river as it flowed toward Caineville.

Flash Flood in WASHINGTON, UTAH
From 26-AUG-13 18:00:00 to 26-AUG-13 19:00:00 (MST-7)
Location: ZION NATIONAL PARK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Widespread flash flooding was once again reported in Zion National Park. Most notably, the East Fork of the Virgin River rose to an estimated 5489 cfs.

Flash Flood in KANE, UTAH
From 26-AUG-13 18:05:00 to 26-AUG-13 20:05:00 (MST-7)
Location: GLEN CANYON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy rain over a large area resulted in the flash flooding of many drainages in far southern Utah, including the Paria River and Wahweap Creek.

Flash Flood in WASHINGTON, UTAH
From 25-AUG-13 16:17:00 to 25-AUG-13 19:00:00 (MST-7)
Location: SPRINGDALE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Significant and widespread flash flooding was reported across Zion National Park after more than an inch of rain fell over the park. The heavy rain filled culverts, and large rocks were washed onto the main scenic drive, resulting in the road being closed down for a period of time. Many canyons were running very high with water, and the gauge on the North Fork of the Virgin River rose to 3159 cfs.

Debris Flow in UTAH, UTAH
From 22-AUG-13 21:50:00 to 22-AUG-13 23:50:00 (MST-7)
Location: ALPINE
Flood cause: Heavy Rain / Burn Area
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Newspaper

Heavy rain over the Quail Fire burn scar near Alpine resulted in a debris flow and flash flooding. Mud flowed across several streets in Alpine, including Grove Drive, Box Elder Drive, and Moyle Drive. One home was flooded, with mud and water 18 inches deep flowing into the basement. One shopping center in the area also experienced some flooding as the water and mud flowed through town. Mud and debris took multiple days to clean up on many roads and lawns.
Associated with the same thunderstorm, flash flooding occurred along the Dry Creek Trail near American Fork Canyon, stranding two hikers for a couple hours before they could be rescued.

Debris Flow in EMERY, UTAH
From 23-AUG-13 13:00:00 to 23-AUG-13 16:00:00 (MST-7)
Location: HUNTINGTON
Flood cause: Heavy Rain / Burn Area
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A debris flow occurred off of the Seeley Fire burn scar, covering State Route 31 with mud, and producing significant rises on Huntington Creek.

Debris Flow in SANPETE, UTAH
From 24-AUG-13 16:00:00 to 24-AUG-13 17:00:00 (MST-7)
Location: FOUNTAIN GREEN
Flood cause: Heavy Rain / Burn Area
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Heavy rain over the Wood Hollow Fire burn scar resulted in a debris flow, with mud crossing over State Route 132 between Fountain Green and Moroni.