A very long period of extremely cold conditions for mid April and a continual push of Pacific  moisture led to heavy mountain snowfall with snow levels down to valley floors.  Interstate pile ups and a snow related fatal airplane crash all occuured during this period.

Winter Storm in RAFT RIVER REGION, IDAHO
From 10-APR-22 07:00:00 to 13-APR-22 18:00:00 (MST-7)
Property damage: 200.00K
Crop damage: 0.00K
Reported by: Department of Highways

Snow and strong winds caused whiteout conditions on interstate 84  with a multiple vehicle accident influenced by the weather occurring just south of the Yale Road Exit at around 5:30 MDT.  RWIS station ITD 12 near the incident reported 0.24 mile visibility at 415 PM and wind gusts as high as 66 mph at 445 PM.   Wind gusts over 50 mph through 645 PM.   Nine people were transported to hospitals.   AS many as 12 semi tractor trailers were involved.  Interstate 86 then closed from 630 PM MDT until 115 AM MDT on the 12th.

Heavy Snow in SOUTHERN HILLS-ALBION MOUNTAINS, IDAHO
From 10-APR-22 08:00:00 to 13-APR-22 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

A week of cold temperatures and moisture brought heavy snow to high elevations.   SNOTEL estimated were 20 inches at Bostetter Ranger Station and 34 inches at Howell Canyon.

Heavy Snow in MARSH AND ARBON HIGHLANDS, IDAHO
From 10-APR-22 08:00:00 to 13-APR-22 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Very heavy snowfall fell during the week with estimated amounts at SNOTEL sites of 26 inches at Sedgwick Peak and 17 inches at Wildhorse Divide.

Heavy Snow in FRANKLIN-EASTERN ONEIDA REGION, IDAHO
From 10-APR-22 08:00:00 to 13-APR-22 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

An estimated 15 inches of snow fell at the Oxford Springs SNOTEL site.

Heavy Snow in BEAR RIVER RANGE, IDAHO
From 10-APR-22 08:00:00 to 13-APR-22 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Snowfall amounts estimated at SNOTEL sites were 21 inches at Emigrant Summit and 27 inches at Frnaklin Basin.

Heavy Snow in BLACKFOOT MOUNTAINS, IDAHO
From 10-APR-22 08:00:00 to 13-APR-22 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

An estimated 18 inches of snow fell at the Sheep Mountain SNOTEL site.   The COOP observer at Bone recorded 8 inches of snow.

Heavy Snow in CARIBOU RANGE, IDAHO
From 10-APR-22 08:00:00 to 13-APR-22 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Estimated snow amounts at SNOTEL sties were 15 inches at Giveout, 16 inches at Slug Creek Divide, and 19 inches at Somsen Ranch.   The COOP observer at Swan Valley reported 14 inches of snow.

Heavy Snow in CENTENNIAL MOUNTAINS-ISLAND PARK, IDAHO
From 10-APR-22 08:00:00 to 13-APR-22 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Estimated snow amounts at SNOTEL sites were 12 inches at Crab Creek and 21 inches at White Elephant.   The COOP observer at Island Park recorded 16.5 inches of snow through the period.

Heavy Snow in FRANK CHURCH WILDERNESS, IDAHO
From 10-APR-22 08:00:00 to 13-APR-22 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

An estimated 16 inches of snow fell at the Milll Creek Summit SNOTEL site.

Heavy Snow in SAWTOOTH-STANLEY BASIN, IDAHO
From 10-APR-22 08:00:00 to 13-APR-22 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

An estimated 29 inches of snow fell at the Vienna Mine SNOTEL site.

Heavy Snow in SUN VALLEY REGION, IDAHO
From 10-APR-22 08:00:00 to 13-APR-22 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The Ketchum COOP observer recorded 11 inches of snow.   SNOTEL snowfall estimates were the following:  Dollarhide Summit 23 inches, Galena Summit 15 inches, Hyndman 15 inches, Lost Wood Divide 10 inches, Garfield Ranger Station 27 inches, Smiley Mountain 18 inches, Stickney Mill 16 inches, and Swede Peak 17 inches.

Winter Weather in ARCO-MUD LAKE DESERT, IDAHO
From 10-APR-22 08:00:00 to 13-APR-22 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP observer at Craters of the Moon recorded 10.4 inches of snow with the extended period of winter weather.

Winter Weather in EASTERN MAGIC VALLEY, IDAHO
From 13-APR-22 07:00:00 to 13-APR-22 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

A single engine Cessna 208B crashed into Gem State Processing in Heyburn a potato processing plant.   The pilot was heading into the Burley Municipal Airport and crashed into the building at around 835 AM MDT.   It occurred during a heavy snow showers and the visibility at the airport was around 1 mile between 8 and 9 AM.   It is possible the visibility was a factor and the pilot was killed in the accident.