Another powerful and moist Pacific storm brought heavy snow and strong winds yet again to southeast Idaho.  Multiple roads were closed again due to snow and wind with heavy amounts recorded.

Winter Storm in ARCO-MUD LAKE DESERT, IDAHO
From 26-FEB-23 05:00:00 to 28-FEB-23 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Snow combined with wind gusts of 40 to 60 mph to close US Highway 26 from Carey to Arco and USD Highway 20 from Idaho Falls to the US 26 junction.  West Jefferson School District 253 closed on the 27th due to road conditions.    No official snow amounts were received but were likely in the 4 to 8 inch range.

Winter Storm in BEAR LAKE VALLEY, IDAHO
From 26-FEB-23 04:00:00 to 28-FEB-23 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Extremely heavy snow fell once again with the Bern COOP site recording 15 inches of snowfall with the system.

Heavy Snow in BEAR RIVER RANGE, IDAHO
From 26-FEB-23 04:00:00 to 28-FEB-23 15:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

SNOTEL snowfall estimates were 47 inches at Emigrant Summit and 44 inches at Franklin Basin.

Winter Storm in FRANKLIN-EASTERN ONEIDA REGION, IDAHO
From 26-FEB-23 04:00:00 to 28-FEB-23 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Extremely heavy snow fell and combined with wind gusts in excess of 30 mph to create extremely hazardous travel conditions.   The COOP site at Malad City measured 11 inches of snow and the Preston COOP site measured 17 inches of snow.   Preston schools closed on the 28th.  The estimated snow amount at the Oxford Springs SNOTEL site was 27 inches.

Winter Storm in BLACKFOOT MOUNTAINS, IDAHO
From 26-FEB-23 04:00:00 to 28-FEB-23 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Local Official

Heavy snow and strong winds caused hazardous road conditions.  Winds gusted to 40 to 50 mph.  Grace School District 148 closed on the 27th and 28th.  Soda Springs School District 15 closed on the 28th and North Gem School District 149 also closed on the 28th.Snow amounts estimated at 9 inches at Sheep Mountain SNOTEL with measured amounts of 10 inches at Bone and 9 inches at Soda Springs.

Winter Storm in CARIBOU RANGE, IDAHO
From 26-FEB-23 04:00:00 to 28-FEB-23 23:00:00 (MST-7)
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Department of Highways

Heavy snow and wind gusts of 40 to 60 mph closed US Highway 26 from Ririe to the Wyoming border.   The LDS Church in Swan Valley was set up to house stranded motorists until the road was reopened.   Snowfall amounts were 6 inches at the Swan Valley COOP site with SNOTEL estimates of 15 inches at Giveout, 23 inches at Slug Creek Divide, and 13 inches at Somsen Ranch.   A police car was destroyed near Antelope Creek Road on US 26 by a snowplow with multiple accidents and slide offs prior to the closing of the road.

Winter Storm in CENTENNIAL MOUNTAINS-ISLAND PARK, IDAHO
From 26-FEB-23 04:00:00 to 28-FEB-23 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Another round of heavy snow and wind gusts of 40 to 60 mph again closed several roads.  US Highway 20 closed from Ashton to the Montana state line.  Idaho Highway 47 closed from Ashton to Warm River.  Idaho Highway 87 closed from Island Park to the Montana state line.   20 inches of snow was estimated at the White elephant SNOTEL site.   12 inches was recorded at Macks Inn and 8 inches at Island Park.

Winter Storm in LOST RIVER VALLEYS, IDAHO
From 26-FEB-23 04:00:00 to 28-FEB-23 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

US Highway 26 closed from Carey to Arco due to snow and wind gusts 40 to 60 mph causing the road to become unpassable.   Snow amounts ranges from 2 to 8 inches in the region.

Winter Storm in LOWER SNAKE RIVER PLAIN, IDAHO
From 26-FEB-23 04:00:00 to 28-FEB-23 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Another round of snow brought heavy amounts with 3.5 inches in American Falls, 4.5 inches in Pocatello, 5.7 inches at the Pocatello Regional Airport and 6 to 8 inchs on the Pocatello benches.

Winter Storm in SHOSHONE-LAVA BEDS, IDAHO
From 26-FEB-23 04:00:00 to 28-FEB-23 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy snow and wind gusts of 40 to 50 mph closed US Highway 26 from Carey to Arco.  The Richfield COOP observer measured 8 inches of snowfall with the system.

Winter Weather in SOUTHERN HILLS-ALBION MOUNTAINS, IDAHO
From 26-FEB-23 04:00:00 to 28-FEB-23 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Estimated SNOTEL snowfall amounts were 14 inches at Bostetter Ranger Station and 22 inches at Howell Canyon. Generally lesser amounts, less than 8 inches, fell across lower elevations during this multi-day winter event.

Winter Storm in SOUTHERN HILLS-ALBION MOUNTAINS, IDAHO
From 26-FEB-23 04:00:00 to 28-FEB-23 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Estimated SNOTEL snowfall amounts were 14 inches at Bostetter Ranger Station and 22 inches at Howell Canyon.

Winter Storm in TETON VALLEY, IDAHO
From 26-FEB-23 04:00:00 to 28-FEB-23 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Another powerful winter storm with heavy snow and wind gusts of 40 to 60 mph caused extensive road closures.   Snow amounts ranged from 6 to 10 inches and the following roads were closed due to snow, blowing snow and drifting:  US Highway 20 from Ashton to the Montana state line, Idaho Highway 32 from Ashton to Tetonia, and Idaho Highway 33 from Newdale to Tetonia.

Winter Storm in UPPER SNAKE RIVER PLAIN, IDAHO
From 26-FEB-23 04:00:00 to 28-FEB-23 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Another round of snow and extreme wind gusts over 40 mph caused extensive road closures.  Residents of Roberts were advised to shelter in place due to the extreme road conditions and Roberts Elementary School was closed on the 27th.   Jefferson School District 251 Roberts residents were also excused from attending.   Snow amounts were 4 to 6 inches with 4.5 inches in Idaho Falls.  The following road closures occurred:  US Highway 20 from Idaho Falls to the US Highway intersection, US Highway 26 from Ririe to the Wyoming state line,  and Idaho Highway 33 from Newdale to Tetonia.

Winter Weather in WOOD RIVER FOOTHILLS, IDAHO
From 26-FEB-23 04:00:00 to 28-FEB-23 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Measured snow amounts were 8 inches at Hailey, 4.5 inches at Bellevue, and 4 inches at Picabo.

Winter Storm in MARSH AND ARBON HIGHLANDS, IDAHO
From 26-FEB-23 04:00:00 to 28-FEB-23 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

COOP snow totals were 9 inches at Inkom and 6.5 inches at McCammon.   SNOTEL estimates were 34 inches at Sedgwick Peak and 11 inches at Wildhorse Divide.  Marsh Valley School District 21 was closed due to hazardous road conditions on the 28th.