Another Pacific storm system brought another year of strong winds, heavy snow with road closures, hazardous travel and school closings.

Winter Storm in MARSH AND ARBON HIGHLANDS, IDAHO
From 20-FEB-23 00:00:00 to 23-FEB-23 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Heavy snow fell over an extended period with COOP sites at Inkom and McCammon measuring 7 inches.   SNOTEL estimated snowfall amounts were 14 inches at Sedgwick Peak.

Heavy Snow in BEAR LAKE VALLEY, IDAHO
From 20-FEB-23 00:00:00 to 23-FEB-23 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP observer in Bern measured 16 inches of snow during the extended storm.

Heavy Snow in BEAR RIVER RANGE, IDAHO
From 20-FEB-23 00:00:00 to 23-FEB-23 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Estimated SNOTEL amounts were 17 inches at Emigrant Summit and 32 inches at Franklin Basin.

Heavy Snow in CARIBOU RANGE, IDAHO
From 20-FEB-23 00:00:00 to 23-FEB-23 14:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Estimated SNOTEL amounts were 10 inches at Giveout, 17 inches at Slug Creek Divide, and 14 inches at Somsen Ranch.

Heavy Snow in FRANKLIN-EASTERN ONEIDA REGION, IDAHO
From 20-FEB-23 00:00:00 to 23-FEB-23 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Oxford Springs SNOTEL site received an estimated 11 inches of snow.

Winter Storm in LOST RIVER VALLEYS, IDAHO
From 20-FEB-23 00:00:00 to 23-FEB-23 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Snow and wind gusts in the 40 to 60 mph range caused blowing and drifting snow which closed US Highway 26 on the 21st from Carey to Arco.

Winter Storm in TETON VALLEY, IDAHO
From 20-FEB-23 00:00:00 to 23-FEB-23 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Heavy snow and wind gusts over 40 mph shut down US Highway 20 from Ashton to the Montana border and Highway 87 from US 20 to the Montana border.   State Highway 33 was closed from Newdale to Tetonia.  State Highway 32 was closed from Ashton to Tetonia.  Highway 47 was closed from Ashton to bear Gulch.  Teton County School district 401 was closed on the 21st and 22nd due to hazardous and closed road conditions.   North Fremont High School and Ashton Elementary School also closed on the 21st and 22nd.   4 to 8 inches of snow fell over the extended period.

Winter Storm in UPPER SNAKE RIVER PLAIN, IDAHO
From 20-FEB-23 00:00:00 to 23-FEB-23 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Heavy snow and wind gusts over 40 mph caused State Highway 33 to close from Newdale to Tetonia.  Recorded snow amounts were 6 inches at Sugar City and 5 inches at Saint Anthony.

Avalanche in BEAR LAKE VALLEY, IDAHO
From 21-FEB-23 14:00:00 to 21-FEB-23 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

An avalanche occurred at around 2:30 PM and closed a section of US Highway 89 between Montpelier and the Wyoming border on the 21st.   It completely covered a portion of the road and it was reopened by 3:30 PM.

Heavy Snow in BIG HOLE MOUNTAINS, IDAHO
From 20-FEB-23 00:00:00 to 23-FEB-23 14:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

One foot of snow was recorded in Victor with 30 to 40 mph wind gusts.

Winter Storm in SHOSHONE-LAVA BEDS, IDAHO
From 20-FEB-23 00:00:00 to 23-FEB-23 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Snow and wind gusts in the 40 to 60 mph range caused blowing and drifting snow which closed US Highway 26 on the 21st from Carey to Arco.

Winter Storm in BLACKFOOT MOUNTAINS, IDAHO
From 20-FEB-23 00:00:00 to 23-FEB-23 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Local Official

Heavy snow with 40 to 50 mph wind gusts caused hazardous road conditions.  Grace School District 148 was closed on the 22nd due to road conditions.   An estimated 11 inches of snow fell at the Sheep Mountain SNOTEL site.    The Bone COOP station reported 5 inches of snow and Soda Springs 7 inches.

Winter Weather in SOUTHERN HILLS-ALBION MOUNTAINS, IDAHO
From 20-FEB-23 00:00:00 to 23-FEB-23 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Estimated SNOTEL snowfall amounts were 13 inches at Bostetter Ranger Station and 24 inches at Howell Canyon. Generally lesser amounts, less than 8 inches, fell across lower elevations during this long duration winter event.

Heavy Snow in SOUTHERN HILLS-ALBION MOUNTAINS, IDAHO
From 20-FEB-23 00:00:00 to 23-FEB-23 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Estimated SNOTEL snowfall amounts were 13 inches at Bostetter Ranger Station and 24 inches at Howell Canyon.

Winter Storm in CENTENNIAL MOUNTAINS-ISLAND PARK, IDAHO
From 20-FEB-23 00:00:00 to 23-FEB-23 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Heavy snow and wind gusts over 40 mph shut down US Highway 20 from Ashton to the Montana border and Highway 87 from US 20 to the Montana border.   Highway 47 was closed from Ashton to Bear Gulch.  North Fremont High School and Ashton Elementary School also closed on the 21st and 22nd.   The Island Park COOP site recorded 11.7 inches of snow with the storm.

Winter Storm in ARCO-MUD LAKE DESERT, IDAHO
From 20-FEB-23 00:00:00 to 23-FEB-23 14:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Snow and wind gusts in the 40 to 60 mph range caused blowing and drifting snow which closed US Highway 26 on the 21st from Carey to Arco.  State Highway 22 was closed from Dubois to Howe.  West Jefferson School District 253 was closed on the 22nd.

Winter Storm in BEAVERHEAD-LEMHI HIGHLANDS, IDAHO
From 20-FEB-23 00:00:00 to 23-FEB-23 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Snow and 40 to 60 mph wind gusts closed interstate 15 from Dubois to the Montana state line on the 22nd.  State Highway 22 from Dubois to Howe was also closed.