Idaho, 2023Heavy Snow in Idaho, March 1, 2023
March 1, 2023 · NWS BOI · 14 events in 5 counties and zones
A surface low pressure system paired with a mid-level shortwave trough produced bands of heavy snow and strong wind in the Treasure Valley and Snake River Plain. Several transportation impacts occurred, with multiple accidents along Interstate 84 near Mountain Home reported.
Every event with a place to put it; 14 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
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- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 14
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
A surface low pressure system paired with a mid-level shortwave trough produced bands of heavy snow and strong wind in the Treasure Valley and Snake River Plain. Several transportation impacts occurred, with multiple accidents along Interstate 84 near Mountain Home reported.
Heavy Snow, Camas Prairie
- When
- March 1, 12:00 AM MST to 9:00 AM MST
- Where
- Camas Prairie forecast zone
- Reported by
- Department of Highways
- Coordinates
- 43.409, -115.137 (the zone’s center; the record gives no point)
The RWIS station near Fairfield, ID measured 5.0 inches of snow in 24 hours. This closed US Highway 20 from milepost 96 to milepost 152 due to blowing and drifting heavy snow.
Heavy Snow, Lower Treasure Valley
- When
- March 1, 12:00 AM MST to 9:00 AM MST
- Where
- Lower Treasure Valley forecast zone
- Reported by
- NWS Employee
- Coordinates
- 43.746, -116.564 (the zone’s center; the record gives no point)
An NWS employee in Caldwell, ID measured 4.4 inches of snow in 24 hours.
Heavy Snow, Lower Treasure Valley
- When
- March 1, 12:00 AM MST to 9:00 AM MST
- Where
- Lower Treasure Valley forecast zone
- Reported by
- CoCoRaHS
- Coordinates
- 43.746, -116.564 (the zone’s center; the record gives no point)
The CoCoRaHS station ID-CY-21 0.4 miles east of Greenleaf measured 6.0 inches of snow in 24 hours.
Heavy Snow, Lower Treasure Valley
- When
- March 1, 12:00 AM MST to 9:00 AM MST
- Where
- Lower Treasure Valley forecast zone
- Reported by
- CoCoRaHS
- Coordinates
- 43.746, -116.564 (the zone’s center; the record gives no point)
The CoCoRaHS station ID-CY-15 4.8 miles northwest of Nampa measured 4.0 inches of snow in 24 hours.
Heavy Snow, Upper Treasure Valley
- When
- March 1, 12:00 AM MST to 9:00 AM MST
- Where
- Upper Treasure Valley forecast zone
- Reported by
- COOP Observer
- Coordinates
- 43.129, -115.960 (the zone’s center; the record gives no point)
The COOP observer at LUCI1 9 miles southeast of Boise measured 10.0 inches of snow in 24 hours.
Heavy Snow, Upper Treasure Valley
- When
- March 1, 12:00 AM MST to 9:00 AM MST
- Where
- Upper Treasure Valley forecast zone
- Reported by
- COOP Observer
- Coordinates
- 43.129, -115.960 (the zone’s center; the record gives no point)
An NWS employee 2.0 miles southeast of Boise measured 4.0 inches of snow in 24 hours.
Heavy Snow, Lower Treasure Valley
- When
- March 1, 12:00 AM MST to 9:00 AM MST
- Where
- Lower Treasure Valley forecast zone
- Reported by
- CoCoRaHS
- Coordinates
- 43.746, -116.564 (the zone’s center; the record gives no point)
The CoCoRaHS station ID-CY-12 0.7 miles northeast of Middleton measured 5.0 inches of snow in 24 hours.
Heavy Snow, Owyhee Mountains
- When
- March 1, 12:00 AM MST to 9:00 AM MST
- Where
- Owyhee Mountains forecast zone
- Reported by
- CoCoRaHS
- Coordinates
- 42.582, -116.170 (the zone’s center; the record gives no point)
The COOP Observer at HOMI1 1.1 miles southeast of Homedale, ID meaasured 5.0 inches of snow in 24 hours.
Heavy Snow, Lower Treasure Valley
- When
- March 1, 12:00 AM MST to 9:00 AM MST
- Where
- Lower Treasure Valley forecast zone
- Reported by
- Social Media
- Coordinates
- 43.746, -116.564 (the zone’s center; the record gives no point)
A member of the public reported 5.3 inches of snow in Caldwell, ID via social media.
Heavy Snow, Upper Treasure Valley
- When
- March 1, 12:00 AM MST to 9:00 AM MST
- Where
- Upper Treasure Valley forecast zone
- Reported by
- Social Media
- Coordinates
- 43.129, -115.960 (the zone’s center; the record gives no point)
Several members of the public reported 4.0 inches of snow in Nampa, ID, Eagle, ID, and Boise, ID via social media.
Heavy Snow, Lower Treasure Valley
- When
- March 1, 12:00 AM MST to 9:00 AM MST
- Where
- Lower Treasure Valley forecast zone
- Reported by
- Social Media
- Coordinates
- 43.746, -116.564 (the zone’s center; the record gives no point)
A member of the public reported 6.5 inches of snow in Caldwell, ID via social media.
Heavy Snow, Boise Mountains
- When
- March 1, 12:00 AM MST to 12:00 PM MST
- Where
- Boise Mountains forecast zone
- Reported by
- Social Media
- Coordinates
- 43.602, -115.335 (the zone’s center; the record gives no point)
A member of the public reported 10.5 inches of snow in Wilderness Ranch near Idaho City, ID via social media. A CoCoRaHS site 12.3 miles northeast of Boise City measured 10.0 inches of snow in 24 hours.
Heavy Snow, Lower Treasure Valley
- When
- March 1, 12:00 AM MST to 12:00 PM MST
- Where
- Lower Treasure Valley forecast zone
- Reported by
- Social Media
- Coordinates
- 43.746, -116.564 (the zone’s center; the record gives no point)
Mutiple reports of 4.0 to 5.0 inches of snow accumulation were reported near Boise. A COOP observer reported 10 inches of snowfall about 10 miles north of Eagle, ID. Several members of the public measured 5.0 inches, 6.0 inches, and 7.0 inches at Lake Lowell near Caldwell, ID via social media.
Heavy Snow, Boise Mountains
- When
- March 1, 9:00 AM MST to 8:00 PM MST
- Where
- Boise Mountains forecast zone
- Reported by
- CoCoRaHS
- Coordinates
- 43.602, -115.335 (the zone’s center; the record gives no point)
The CoCoRaHS station ID-BS-8 12.3 miles northeast of Boise City measured 10.0 inches of snow in 24 hours.
- Heavy Snow
- Snowfall reaching the local warning threshold without the other hazards of a winter storm.
After NWS Directive 10-1605, the rules offices file Storm Data by.
- Tornadoes and Flash Flooding in Arkansas, March 1 to 3, 20231 death · 5 injured · $6.1 million · EF2 · 47 events
- Flash Flood and Winter Storm in California, March 1 to 2, 20231 death · 1 injured · $933,000 · 22 events
- High Wind and Strong Wind in Mississippi, March 1 to 3, 20231 death · 1 injured · $107,000 · 53 kt wind · 13 events
- Damaging Winds and High Wind in Tennessee, March 1 to 3, 20231 death · 1 injured · 85 kt wind · 21 events
- Heavy Snow and Winter Weather in Idaho, March 1, 202312 injured · $230,000 · 4 events
- Hail and Damaging Wind in Mississippi, March 1, 2023$254,000 · 3 in hail · 3 events
- Hail in Texas, March 1, 2023$37,000 · 2 in hail · 22 events
- Flood and Hail in Kentucky, March 1, 2023$70,000 · 1 in hail · 4 events
- Tornado and Flash Flooding in Alabama, March 1 to 2, 2023$500 · EF1 · 15 events
- Hail and Damaging Wind in Texas, March 1 to 2, 20234 in hail · 34 events
- Tornado and Hail in Oklahoma, March 1 to 2, 2023$10,000 · EF1 · 8 events
- Drought in Oklahoma, March 1 to 31, 202328 events
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 1091256, 1091260, 1091261, 1091262, 1091267, 1091268, 1091270, 1091271, 1091272, 1091273, 1091274, 1091275, 1091281, 1091255.