A very cold air mass setup over the west coast of the United States from mid-February into early March. The first storm arrived on March 14th/15th bringing low elevation snow and small hail to the coast.

Winter Weather in DEL NORTE INTERIOR, CALIFORNIA
From 14-FEB-23 03:30:00 to 14-FEB-23 07:30:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

One inch of snow measured in Gasquet. Snow began around 3:30 am.

Winter Weather in DEL NORTE INTERIOR, CALIFORNIA
From 14-FEB-23 06:11:00 to 14-FEB-23 06:11:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Moderate snow on Highway 199 near the Collier Tunnel. A semi jackknifed resulting in the road becoming blocked and closed for a short period of time.

Winter Weather in NORTHERN HUMBOLDT COAST, CALIFORNIA
From 14-FEB-23 07:50:00 to 14-FEB-23 07:50:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Up to an inch of snow measured by an NWS Employee at their house near Blue Lake at an elevation of 250 feet.

Winter Weather in SOUTHWESTERN MENDOCINO INTERIOR, CALIFORNIA
From 14-FEB-23 07:30:00 to 14-FEB-23 07:30:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Member of the public reported an estimated 2 inches of snow at Kneeland at an elevation of 2,500 feet. The start time of the snowfall was unknown.

Winter Weather in NORTHERN HUMBOLDT INTERIOR, CALIFORNIA
From 14-FEB-23 04:00:00 to 14-FEB-23 07:40:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Member of the public reported 2 inches of snow in Orleans at an elevation of approximately 900 feet.

Winter Weather in NORTHERN TRINITY, CALIFORNIA
From 14-FEB-23 04:00:00 to 14-FEB-23 07:30:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Member of the public reported 3 inches of snow in Big Bar at an elevations of 1460 feet.

Winter Weather in SOUTHERN HUMBOLDT INTERIOR, CALIFORNIA
From 14-FEB-23 08:00:00 to 14-FEB-23 08:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Measured 2.25 inches of snow on Buck Mountain. Start time of snow was unknown.

Winter Weather in NORTHERN HUMBOLDT COAST, CALIFORNIA
From 14-FEB-23 06:30:00 to 14-FEB-23 08:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A half inch of snow was estimated to be on the ground in Korbel by a member of the public. Snow began around 6:30 am and the elevation is 135 feet.

Winter Weather in NORTHERN TRINITY, CALIFORNIA
From 14-FEB-23 09:00:00 to 14-FEB-23 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Measured 2 inches of snow in Junction City at an elevation of 1256 feet.

Winter Weather in NORTHERN HUMBOLDT COAST, CALIFORNIA
From 14-FEB-23 05:00:00 to 14-FEB-23 05:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Report of small hail covering the ground in Trinidad resulting in very slippery surfaces.

Winter Weather in COASTAL DEL NORTE, CALIFORNIA
From 14-FEB-23 06:42:00 to 14-FEB-23 06:43:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report of small hail with approximately 25 percent of the ground covered 4 miles northeast of Crescent City.

Winter Weather in COASTAL DEL NORTE, CALIFORNIA
From 14-FEB-23 07:09:00 to 14-FEB-23 07:09:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public report of a half inch of snow on the ground near Klamath Glen.

Winter Weather in NORTHERN HUMBOLDT INTERIOR, CALIFORNIA
From 14-FEB-23 06:49:00 to 14-FEB-23 06:49:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Snow on the roadway in Hoopa caused a vehicle to spin out. Snow accumulation was unknown.

Winter Weather in SOUTHERN TRINITY, CALIFORNIA
From 14-FEB-23 09:00:00 to 14-FEB-23 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Social media report of approximately 1.5 inches of snow in Hayfork.

Winter Weather in MENDOCINO COAST, CALIFORNIA
From 14-FEB-23 09:03:00 to 14-FEB-23 09:18:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Intermittent small hail approximately the size of rice in Albion.

Winter Weather in NORTHERN HUMBOLDT INTERIOR, CALIFORNIA
From 14-FEB-23 05:00:00 to 14-FEB-23 08:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Estimated 4 inches of snow on Bald Hills Road.