With a nearly stationary upper level low over California, large amounts of moisture spread into Utah. This allowed numerous showers and thunderstorms to develop across the state, with severe thunderstorms developing primarily across southern and eastern Utah, and widespread flooding occurring across southern Utah.

Flood in WASHINGTON, UTAH
From 05-OCT-10 13:45:00 to 06-OCT-10 16:00:00 (MST-7)
Location: SPRINGDALE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Flooding was reported across Zion National Park, including in the Oak Creek and Emerald Pools areas.

Thunderstorm Wind in TOOELE, UTAH
From 06-OCT-10 14:15:00 to 06-OCT-10 14:15:00 (MST-7)
Location: BAUER
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Stockton Bar sensor recorded a wind gust of 58 mph.

Flood in KANE, UTAH
From 05-OCT-10 09:30:00 to 07-OCT-10 07:00:00 (MST-7)
Location: GLEN CANYON
Flood cause: Heavy Rain
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Flooding occurred in many drainages in Kane County, including Wahweep Wash and Bullfrog Creek, with the Burr Trail at Bullfrog Creek becoming impassable due to water flowing over the trail. In addition, basement flooding was reported in Johnson Canyon.

Hail in CARBON, UTAH
From 07-OCT-10 16:06:00 to 07-OCT-10 16:06:00 (MST-7)
Location: PRICE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Nickel size (0.88 inch diameter) hail was reported near Price.

Hail in EMERY, UTAH
From 06-OCT-10 13:53:00 to 06-OCT-10 13:53:00 (MST-7)
Location: GREEN RIVER
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail with a diameter of 2 inches was reported near Green River.

Hail in SAN JUAN, UTAH
From 06-OCT-10 08:30:00 to 06-OCT-10 08:30:00 (MST-7)
Location: NAVAJO MTN TRDNG POS
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Hail with a diameter of 1 inch to 1.5 inches was reported at Padre Point.

Thunderstorm Wind in KANE, UTAH
From 06-OCT-10 12:45:00 to 06-OCT-10 12:45:00 (MST-7)
Location: BULLFROG
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Bullfrog Marina sensor recorded a maximum wind gust of 65 mph.

Flash Flood in KANE, UTAH
From 07-OCT-10 14:40:00 to 07-OCT-10 17:40:00 (MST-7)
Location: GLEN CNYN BSN ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Rainfall of 0.60 inches in an hour, combined with antecedent moisture from three days of rainfall, led to flash flooding in Kodachorme Basin State Park and drainages east of the park.

Flood in EMERY, UTAH
From 05-OCT-10 14:00:00 to 06-OCT-10 18:00:00 (MST-7)
Location: MOORE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Multiple drainages flooded in Emery County, particularly near Goblin Valley State Park, where water flowed over the Little Wildhorse Road.

Hail in SAN JUAN, UTAH
From 06-OCT-10 11:33:00 to 06-OCT-10 11:33:00 (MST-7)
Location: WHITE CANYON
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Hail with a diameter of 1.5 inches was reported near Halls Crossing.

Flood in WAYNE, UTAH
From 06-OCT-10 01:00:00 to 07-OCT-10 05:00:00 (MST-7)
Location: FRUITA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Water and flood debris flowed across the Scenic Drive in Capitol Reef National Park, closing the road to all tourists. In addition, the Dirty Devil River, which normally flows at 10 to 20 cfs, reached a peak of 6300 cfs on October 6th.

Flood in GARFIELD, UTAH
From 05-OCT-10 09:00:00 to 07-OCT-10 08:00:00 (MST-7)
Location: ESCALANTE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Flooding occurred across many drainages in Garfield County, including Calf Creek and the Escalante River. The Escalante River, which typically flows below 10 cfs, reached a peak of 1300 cfs on October 5th. In addition, the Dirty Devil River, which normally flows at 10 to 20 cfs, reached a peak of 6300 cfs on October 6th.

Tornado in WAYNE, UTAH
From 06-OCT-10 13:00:00 to 06-OCT-10 13:05:00 (MST-7)
Location: (4HV)HANKSVILLE
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

An EF0 tornado touched down west of Canyonlands National Park, at the south end of Robbers Roost Flat. Approximately 30 juniper trees were either snapped or uprooted by the tornado. No monetary damage occurred as the tornado occurred in a rural area and no trees fell on the nearby dirt road, so no cleanup was necessary.

Flash Flood in WAYNE, UTAH
From 07-OCT-10 14:45:00 to 07-OCT-10 16:45:00 (MST-7)
Location: FRUITA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Flash flooding occurred in Capitol Reef National Park, including along SR-24 and in the Cathedral areas of the park.

Lightning in WASHINGTON, UTAH
From 05-OCT-10 14:00:00 to 05-OCT-10 14:00:00 (MST-7)
Location: SANTA CLARA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Two 17 year old males were struck by lightning just outside Snow Canyon High School in St. George. The two boys were waiting for a ride home shortly after school let out; they took shelter from the rain under a nearby tree, where lightning struck and injured them both. CPR was performed at the site, and they were both in critical condition when they reached a hospital in Las Vegas, but both survived and are expected to make a full recovery.