Showers and thunderstorms continued to form in a moist airmass across the state of Utah in the first few days of August. The strongest of these storms produced primarily severe wind gusts and hail in northern Utah, while producing heavy rain and flash flooding in southern and eastern Utah.

Flash Flood in WAYNE, UTAH
From 03-AUG-11 16:00:00 to 03-AUG-11 18:00:00 (MST-7)
Location: NOTOM
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Park rangers at Capitol Reef National Park reported a large flash flood along Sulpher Creek.

Flash Flood in KANE, UTAH
From 03-AUG-11 14:45:00 to 03-AUG-11 16:45:00 (MST-7)
Location: GLEN CANYON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Heavy rain caused flash flooding along Wahweep Canyon near Big Water.

Flash Flood in SEVIER, UTAH
From 03-AUG-11 22:00:00 to 04-AUG-11 00:00:00 (MST-7)
Location: COVE
Flood cause: Heavy Rain / Burn Area
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Flash flooding occurred along Clear Creek Canyon Road near Fremont Indian State Park. This flooding was exacerbated by the rain falling on an old burn scar, which allowed debris to flow over the road.

Flash Flood in PIUTE, UTAH
From 04-AUG-11 15:30:00 to 04-AUG-11 17:30:00 (MST-7)
Location: ANGLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Flash flooding occurred near the town of Angle due to heavy rainfall.

Hail in SALT LAKE, UTAH
From 04-AUG-11 14:30:00 to 04-AUG-11 14:40:00 (MST-7)
Location: SALT LAKE NO TWO ARP
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Large hail was observed on the west side of the Salt Lake Valley, with 1.5 inch diameter hail reported near Kearns and 1 inch hail reported in West Valley City.

Hail in UTAH, UTAH
From 04-AUG-11 14:10:00 to 04-AUG-11 14:10:00 (MST-7)
Location: PAYSON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Hail with a diameter of 0.75 inches was reported near Payson.

Hail in PIUTE, UTAH
From 04-AUG-11 14:30:00 to 04-AUG-11 14:30:00 (MST-7)
Location: CIRCLEVILLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail with a diameter of 0.75 inches was observed near Circleville. This thunderstorm also produced very heavy rain over the area.

Thunderstorm Wind in TOOELE, UTAH
From 02-AUG-11 15:30:00 to 02-AUG-11 15:30:00 (MST-7)
Location: GOLD HILL
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Causeway sensor in the Dugway Proving Ground mesonet recorded a maximum wind gust of 62 mph.

Thunderstorm Wind in TOOELE, UTAH
From 02-AUG-11 16:00:00 to 02-AUG-11 16:10:00 (MST-7)
Location: ARINOSA
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Two sensors in the Dugway Proving Ground mesonet recorded strong wind gusts with a thunderstorm moving through the area. The Juliet Road sensor recorded a maximum gust of 59 mph, while the North Salt Flats sensor recorded a 58 mph wind gust.

Thunderstorm Wind in TOOELE, UTAH
From 02-AUG-11 16:50:00 to 02-AUG-11 16:50:00 (MST-7)
Location: BARRO
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Interstate 80 sensor recorded a maximum wind gust of 58 mph.

Thunderstorm Wind in SALT LAKE, UTAH
From 02-AUG-11 19:10:00 to 02-AUG-11 19:10:00 (MST-7)
Location: FT DOUGLAS
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The University of Utah WBB sensor recorded a maximum wind gust of 63 mph.

Hail in UTAH, UTAH
From 04-AUG-11 15:00:00 to 04-AUG-11 15:00:00 (MST-7)
Location: ALPINE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A participant of the Cooperative Observer Program, near Alpine, reported hail with a diameter of 0.75 inches.

Flash Flood in WAYNE, UTAH
From 01-AUG-11 14:00:00 to 01-AUG-11 16:00:00 (MST-7)
Location: NOTOM
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Flash flooding was reported along Pleasant Creek, Sandy Creek, and Burro Wash in and near Capitol Reef National Park.