Thunderstorms continued across Utah for the last week of July, with many storms producing heavy rainfall. This led to flash flooding in many locations, including a particularly damaging flood in Salt Lake City. A lightning strike also led to two injuries on the morning of July 28.

Flash Flood in GARFIELD, UTAH
From 28-JUL-17 13:15:00 to 28-JUL-17 15:30:00 (MST-7)
Location: CANNONVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

A large flash flood was reported southeast of Bryce Canyon, including along Sheep Creek, Yellow Creek, and Willis Creek.

Flash Flood in KANE, UTAH
From 28-JUL-17 18:30:00 to 28-JUL-17 22:00:00 (MST-7)
Location: KANAB
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

A large flash flood was reported in Johnson Canyon, particularly in the upper drainage portion of the canyon.

Flash Flood in GARFIELD, UTAH
From 24-JUL-17 15:52:00 to 24-JUL-17 18:00:00 (MST-7)
Location: ESCALANTE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Flash flooding occurred along the headwaters of the Escalante River, including along Birch Creek and Upper Valley Creek.

Flash Flood in IRON, UTAH
From 24-JUL-17 14:00:00 to 24-JUL-17 15:30:00 (MST-7)
Location: PAROWAN ARPT
Flood cause: Heavy Rain / Burn Area
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Department of Highways

Heavy rain over the Brianhead Fire burn scar caused widespread flash flooding and debris flows. On the south side of the burn near Panguitch Lake, multiple roads were washed out along Clear Creek. On the north end of the burn scar, flooded roads were reported both east and west of the ridgeline.

Flash Flood in GARFIELD, UTAH
From 24-JUL-17 17:30:00 to 24-JUL-17 19:30:00 (MST-7)
Location: CANNONVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Flash flooding was reported in Sheep Creek, Yellow Creek, and Willis Creek.

Flash Flood in KANE, UTAH
From 25-JUL-17 11:46:00 to 25-JUL-17 13:30:00 (MST-7)
Location: ADAIRVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Flash flooding was reported along the Paria River and Buckskin Gulch.

Flash Flood in KANE, UTAH
From 25-JUL-17 14:30:00 to 25-JUL-17 15:30:00 (MST-7)
Location: GLEN CANYON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Minor flash flooding was reported along Wahweap Creek.

Flash Flood in GARFIELD, UTAH
From 26-JUL-17 16:00:00 to 26-JUL-17 19:00:00 (MST-7)
Location: BULLFROG
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Flash flooding occurred along the Escalante River, with the river gauge on the Escalante rising from 0 cfs to 1549 cfs in one hour.

Flash Flood in KANE, UTAH
From 27-JUL-17 22:00:00 to 27-JUL-17 23:30:00 (MST-7)
Location: GLEN CANYON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Flash flooding was reported along Wahweap Creek during the overnight hours.

Flash Flood in SALT LAKE, UTAH
From 26-JUL-17 03:00:00 to 26-JUL-17 07:00:00 (MST-7)
Location: (SLC)SALT LAKE CITY
Flood cause: Heavy Rain
Property damage: 8.75M
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorms producing heavy rainfall moved into the Salt Lake Valley in the early morning hours of July 26 and generally persisted for 3-4 hours, producing widespread flash flooding. The highest reported rainfall totals included 2.40 inches in Sugarhouse near Parleys Way, and many locations on the east side of the Salt Lake Valley reported 1.00 to 1.60 rain. The most significant damage occurred at East High School, where flooding caused $2.5 million in damage, with the largest percentage of the damage impacting the athletics department. Flooding was also reported at other Salt Lake City schools including Highland High School, Emerson Elementary, and the Salt Lake Center of Science Education. Another building that was damaged significantly was the Sprague Library, where water poured into the library's basement, damaging books, computers, furniture, and walls. Damage to the Sprague Library totaled $1.5 million. The train track for the TRAX light rail was under a foot of water on 200 West at 1100 South, causing significant delays and forcing UTA to use a bus bridge between stops. Street flooding was also reported at several locations across the city, including major thoroughfares such as Foothill Drive and 3300 South. Temporary power outages impacted about 4,200 customers across the metro area. Damage was reported at 172 total homes across the area. These private damages were primarily minor basement flooding, but 26 homes experienced damage due to overflowing sewer lines, and 3 homes experienced major damage of approximately $35,000 at each of these 3 houses. In total, private damages were estimated to be $1.75 million, while public damages were estimated at $7 million.

Lightning in BEAVER, UTAH
From 29-JUL-17 09:30:00 to 29-JUL-17 09:30:00 (MST-7)
Location: BEAVER
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Two girls, ages 8 and 16, were camping with relatives near Big Flat in the Beaver Mountains. The girls were by themselves, accompanied by a family dog, when they were both struck by lightning. The dog returned to camp to alert the rest of the family, and the family found the girls unconscious. Both girls were flown via helicopter to the hospital, and both survived, despite suffering significant injuries.

Flash Flood in GARFIELD, UTAH
From 25-JUL-17 15:00:00 to 25-JUL-17 16:30:00 (MST-7)
Location: ESCALANTE MUNI ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Widespread flash flooding was reported in the upper drainages of the Escalante River.