A continual influx of Pacific moisture and colder than normal temperatures brought rounds of very heavy snow, strong winds, avalanches, and road closures throughout southeast Idaho in an extended period.   Events were difficult to separate and treated as one continual event.

Winter Weather in SOUTHERN HILLS-ALBION MOUNTAINS, IDAHO
From 25-MAR-23 06:00:00 to 27-MAR-23 07:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Upwards of 4 feet of snow fell in the high elevations of the Albion Mountains with estimated amounts of 16.4 inches at Bostetter Ranger Station and 42.3 inches at Howell Canyon SNOTEL sites.  Lesser events fell at lower elevations over this long duration snow event. The heavy snowfall and wind eventually caused an avalanche on the 27th closing Pomerelle Mountain and Howell Canyon Road.

Winter Storm in UPPER SNAKE RIVER PLAIN, IDAHO
From 22-MAR-23 20:00:00 to 25-MAR-23 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy snow and strong winds brought very hazardous travel to the region.   Strong winds caused extensive blowing and drifting snow and US Highway 26 closed on the 25th from Ririe to Swan Valley and Idaho Highway 33 was closed from Newdale to Tetonia.  Measured snow amounts were 5 inches at Idaho Falls, 8 inches at Rexburg, 2.5 inches at Rigby, and 5 inches at Sugar City.

Heavy Snow in FRANKLIN-EASTERN ONEIDA REGION, IDAHO
From 23-MAR-23 00:00:00 to 26-MAR-23 00:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy snow fell with an early spring storm.   COOP observers measured 10 inches at Preston and 6.5 inches at Downey.

Winter Storm in CARIBOU RANGE, IDAHO
From 23-MAR-23 20:00:00 to 27-MAR-23 07:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Snow and wind caused US Highway 26 to close from Newdale to Tetonia on the 25th.   The Swan Valley COOP site measured 8 inches of snow with SNOTEL estimates of 8 inches also at Giveout and Somsen Ranch.

Winter Storm in TETON VALLEY, IDAHO
From 23-MAR-23 00:00:00 to 26-MAR-23 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Snow and wind continued in endless moisture influx from the Pacific ocean into the first week of spring.   The Driggs COOP site observed 10.9 inches of snowfall with the system.  North Fremont Schools closed early on the 24th due to snow and wind causing occasional whiteout conditions.   Idaho Highway 33 closed from Newdale to Tetonia on the 25th.

Avalanche in SOUTHERN HILLS-ALBION MOUNTAINS, IDAHO
From 27-MAR-23 12:00:00 to 27-MAR-23 17:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Three snowboarders and one skier were buried when they triggered an avalanche above the roadway in Howell Canyon.   Two were near the surface and were able to dig themselves out and then dig the other two out or the snow.   No injuries occurred.   the avalanche and mitigation closed Pomerelle ski resort on the 28th.

Winter Weather in BLACKFOOT MOUNTAINS, IDAHO
From 22-MAR-23 21:00:00 to 27-MAR-23 00:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The Bone COOP observer measured 18 inches of snow over the multi-day spring snow event.

Winter Weather in CENTENNIAL MOUNTAINS-ISLAND PARK, IDAHO
From 24-MAR-23 23:00:00 to 27-MAR-23 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Snowfall amounts during this multi-day event from the 24th through the 26th were 10.4 inches at the Island Park COOP site, 12 inches at Macks Inn, and the White Elephant SNOTEL had an estimated 14 inches.

Winter Weather in SAWTOOTH-STANLEY BASIN, IDAHO
From 25-MAR-23 00:00:00 to 27-MAR-23 07:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

An estimated 16.5 inches of snow fell at the Vienna Mine SNOTEL site over this multi-day snow event. Lesser amounts, generally under 8 inches, fell in lower elevations.

Heavy Snow in CENTENNIAL MOUNTAINS-ISLAND PARK, IDAHO
From 24-MAR-23 23:00:00 to 27-MAR-23 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Snowfall amounts from the 24th through the 26th were 10.4 inches at the Island Park COOP site, 12 inches at Macks Inn, and the White Elephant SNOTEL had an estimated 14 inches.

Heavy Snow in BLACKFOOT MOUNTAINS, IDAHO
From 22-MAR-23 21:00:00 to 27-MAR-23 00:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The Bone COOP observer measured 18 inches of snow over the extended spring snowstorm.

Heavy Snow in SAWTOOTH-STANLEY BASIN, IDAHO
From 25-MAR-23 00:00:00 to 27-MAR-23 07:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

An estimated 16.5 inches of snow fell at the Vienna Mine SNOTEL site.

Heavy Snow in SOUTHERN HILLS-ALBION MOUNTAINS, IDAHO
From 25-MAR-23 06:00:00 to 27-MAR-23 07:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Upwards of 4 feet of snow fell in the Albion Mountains with estimated amounts of 16.4 inches at Bostetter Ranger Station and 42.3 inches at Howell Canyon SNOTEL sites.  The heavy snowfall and wind eventually caused an avalanche on the 27th closing Pomerlle Mountain and Howell Canyon Road.