A strong winter storm brought widespread snowfall and winter impacts to much of the forecast region for the start of 2023. Some of the high elevation locations saw snow begin prior to the new year, while most valley locations saw rain switch to snow right around midnight on the new year. Additionally, isolated flash flooding was reported in southern Utah due to rainfall associated with the system.

Heavy Snow in CENTRAL MOUNTAINS, UTAH
From 01-JAN-23 00:00:00 to 03-JAN-23 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Several SNOTEL stations including Rees Flat, Beaver Dams, and Red Pine Ridge recorded 1.8 to 4.7 inches of snow water equivalent, resulting in approximately 17 to 44 inches of snow. Note that some snow in the high elevations began as early as 12/30/22.

Heavy Snow in CASTLE COUNTRY, UTAH
From 01-JAN-23 00:00:00 to 03-JAN-23 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A report of 1.2 inches of snow water equivalent resulting in 10 inches of snow was received from Sunnyside. Automated observing equipment at locations including US-6 at MP 256 SR-123, Carbon County Regional Airport/Buck Davis Field, and US 6 at Helper ranged from 0.7 to 1.9 inches of snow water equivalent, resulting in approximately 6 to 16 inches of snow.

Flash Flood in WASHINGTON, UTAH
From 01-JAN-23 08:19:00 to 01-JAN-23 16:00:00 (MST-7)
Location: ROCKVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Associated with persistent ongoing moderate to heavy rain, park rangers at Zion National Park reported several canyons around the park were flooding.

Heavy Snow in WASATCH MOUNTAINS SOUTH OF I-80, UTAH
From 01-JAN-23 00:00:00 to 03-JAN-23 23:00:00 (MST-7)
Property damage: 20.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Wasatch Mountains South of I-80 zone saw some of the highest snowfall totals through the event. Several SNOTEL and snow safety community observations including those at Solitude Mountain Resort, Snowbird, Alta Ski Area, and Brighton reported between 2.6 to 4.8 inches of snow water equivalent, resulting in approximately 31 to 44 inches of snow. The highest reported snowfall total was 52 inches at Sundance Mountain Resort. In addition, it was reported that at least a dozen 50 foot trees were felled near Sundance Mountain Resort due to the heavy snow, bringing down power lines in the area. Note that some snow in the high elevations began as early as 12/30/22.

Heavy Snow in UTAH VALLEY, UTAH
From 01-JAN-23 00:00:00 to 03-JAN-23 10:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A combination of Coop observers, CoCoRaHS observers, and public reports included  snowfall amounts of 5.4 inches at Provo BYU, 8.5 inches at Alpine, and 10.5 inches at Spanish Fork Power House.

Heavy Snow in CACHE VALLEY/UTAH PORTION, UTAH
From 01-JAN-23 00:00:00 to 03-JAN-23 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A combination of Coop observers, CoCoRaHS observers, and public reports included snowfall amounts of 7.5 inches in Clarkston, 9.6 inches in Providence, 11.0 inches in Logan, and a max report of 11.6 inches in Richmond.

Heavy Snow in WESTERN UINTA MOUNTAINS, UTAH
From 01-JAN-23 00:00:00 to 03-JAN-23 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Several SNOTEL stations including Chepeta, Lakefork Basin, and Currant Creek recorded  2.2 to 3.3 inches of snow water equivalent, resulting in approximately 21 to 31 inches of snow. Additionally, a Coop observer 10 miles ESE of Heber City reported snow water equivalent of around 3.2 inches with a corresponding snowfall amount of 30 inches. Note that some snow in the high elevations began as early as 12/30/22.

Heavy Snow in WASATCH PLATEAU/BOOK CLIFFS, UTAH
From 01-JAN-23 00:00:00 to 03-JAN-23 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Several SNOTEL stations including Indian Canyon, Strawberry Divide, and Mammoth-Cottonwood recorded 2.9 to 5.2 inches of snow water equivalent, resulting in approximately 27 to 49 inches of snow. Note that some snow in the high elevations began as early as 12/30/22.

Heavy Snow in NORTHERN WASATCH FRONT, UTAH
From 01-JAN-23 00:00:00 to 03-JAN-23 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A combination of Coop observers, CoCoRaHS observers, and public reports included snowfall amounts of 5.5 inches in Kaysville, 5.8 inches at Fruit Heights, and from 6.3 to 9.0 inches in Bountiful.

Heavy Snow in TOOELE AND RUSH VALLEYS, UTAH
From 01-JAN-23 00:00:00 to 03-JAN-23 10:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Coop snowfall observations in the Tooele Valley ranged from 7 to 14 inches. The Bolinder Field-Tooele Valley Airport ASOS recorded 0.96 inches of snow water equivalent, or approximately 10 inches of snow. In addition, snow at the ASOS was heavy enough to result in a prolonged period of visibility below 2 statute miles.

Heavy Snow in EASTERN BOX ELDER COUNTY, UTAH
From 01-JAN-23 00:00:00 to 03-JAN-23 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A Coop observer near Garland reported 6.5 inches of snow for the event. A Combination of other Coop observers, CoCoRaHS observers, and public reorts included 0.40 to 0.65 inches of snow water equivalent, resulting in approximately 4 to 7 inches of snow.

Heavy Snow in SALT LAKE VALLEY, UTAH
From 01-JAN-23 00:00:00 to 03-JAN-23 12:00:00 (MST-7)
Property damage: 40.00K
Crop damage: 0.00K
Reported by: NWS Employee

Snow measurements around the Salt Lake Valley from a combination of NWS employees, Coop observers, CoCoRaHS observers, and the public showed a range of snow accumulations from around 6 inches on the low end to around 17 inches on the high end. Some selected reports included 7 inches in West Jordan, 10 inches in South Jordan, 12 inches in Daybreak, and a max report of 16.4 inches in Sandy. At National Weather Service Weather Forecast Office Salt Lake City, UT,  6 inches of snow was recorded for the event. In addition, it was reported that heavy snow caused a carport at an apartment complex to collapse, resulting in damage to 15 cars.

Heavy Snow in BEAR LAKE AND BEAR RIVER VALLEY, UTAH
From 01-JAN-23 00:00:00 to 03-JAN-23 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Coop observer reports of snowfall amounts include 8.0 inches in Randolph, 9.4 inches in Laketown, and 10.0 inches in Woodruff.

Heavy Snow in WASATCH BACK, UTAH
From 01-JAN-23 00:00:00 to 03-JAN-23 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A combination of Coop observers, CoCoRaHS observers, and public reports included snowfalll amounts of 7.8 inches in Park City, 11.9 inches in Wanship, 14.0 inches at Deer Creek Dam, and 14.9 inches in Oakley.

Heavy Snow in WASATCH MOUNTAINS I-80 NORTH, UTAH
From 01-JAN-23 00:00:00 to 03-JAN-23 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Several SNOTEL stations including Parley's Summit, Ben Lomond Trail, and Powder Mountain recorded between around 2.5 to 2.8 inches of snow water equivalent, resulting in approximately 21 to 24 inches of snow. Note that some snow in the high elevations began as early as 12/30/22.

Heavy Snow in SOUTHWEST UTAH, UTAH
From 01-JAN-23 15:00:00 to 03-JAN-23 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Several observing stations including ones at Cedar City, Paragonah, and Summit recorded between around 0.6 to 0.8 inches of snow water equivalent, resulting in approximately 6 to 8 inches of snow.

Heavy Snow in SOUTHERN MOUNTAINS, UTAH
From 01-JAN-23 00:00:00 to 03-JAN-23 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Several SNOTEL stations including Clayton Springs, Brian Head, and Big Flat recorded 1.6 to 3.9 inches of snow water equivalent, resulting in approximately 14 to 35 inches of snow. Note that some snow in the high elevations began as early as 12/30/22.

Flash Flood in WASHINGTON, UTAH
From 01-JAN-23 14:52:00 to 01-JAN-23 16:52:00 (MST-7)
Location: IVINS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Associated with persistent ongoing moderate to at times heavy rain, local law enforcement reported flash flooding in Snow Canyon State Park, including water moving over Snow Canyon Road which made the road impassable. The flooding also necessitated the closure of the south entrance to the park.

Heavy Snow in WESTERN UINTA BASIN, UTAH
From 01-JAN-23 00:00:00 to 03-JAN-23 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A combination of Coop observers, CoCoRaHS observers, and public reports, including ones at Roosevelt, Altamont, and Neola, indicated from 0.6 to 1.0 inches of snow water equivalent, resulting in approximately 6 to 9 inches of snow.