A major winter storm brought heavy mountain and low elevation snow with blizzard conditions in the Sierra, where 5 to 7 feet of storm total snow was reported, with locally higher amounts. Significant power outages, school closures, and road closures were observed. 1 fatality occurred from a collapsed porch due to heavy snow loading. Lower elevations observed widespread rain, gusty winds, and isolated thunderstorms.

Heavy Snow in MOUNTAINS SOUTHWESTERN SHASTA COUNTY TO WESTERN COLUSA COUNTY, CALIFORNIA
From 26-FEB-23 04:00:00 to 28-FEB-23 23:59:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

The National Operational Hydrologic Remote Sensing Center estimated 8 to 24 inches for storm total snow.

Heavy Snow in NORTHEAST FOOTHILLS/SACRAMENTO VALLEY, CALIFORNIA
From 26-FEB-23 04:00:00 to 28-FEB-23 23:59:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

The National Operational Hydrologic Remote Sensing Center estimated 4 to 18 inches of storm total snow. Widespread power outages and school closures were reported.

Blizzard in WEST SLOPE NORTHERN SIERRA NEVADA, CALIFORNIA
From 26-FEB-23 04:00:00 to 28-FEB-23 23:59:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Caltrans reported storm total snow amounts of 68 inches at Kingvale and 83 inches at Soda Springs. Ski resorts reported 67 inches at Kirkwood Mountain Resort, 63 inches at Sierra-at-Tahoe, 92 inches at Palisades Tahoe, and 62 inches at Sugar Bowl Resort. UC Berkeley Central Sierra Snow Lab reported 87.2 inches storm total. California Highway Patrol reported the closure of mountain highways due to heavy snow and strong wind, including Highway 50 and Interstate 80. Local weather stations reported strong winds, with gusts to 52 mph on Cole Creek Road (PGE 5854 feet), 41 mph on Spring Valley Road (PGE 3946 feet), 57 mph on Donner Pass Road (PGE 7636 feet). Local broadcast media reported the closure of numerous schools in the Sierra, with extensive power outages.

Heavy Snow in MOTHERLODE/CAMPTONVILLE TO GROVELAND, CALIFORNIA
From 26-FEB-23 04:00:00 to 28-FEB-23 23:59:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

CoCoRaHS reported heavy storm total snow amounts, with 29.4 inches near Nevada City, 15.6 inches near Volcano, 10.4 inches near Camino, 26.3 inches near Grass Valley, and5 inches in Placerville. An 80 year old woman was killed when the porch of a house collapsed in Foresthill under the weight of snow, with about 4 feet of snow reported on the ground by Foresthill spotter. Widespread power outages were reported with multiple schools closed. Broadcast media reported the roof collapse of a church in Foresthill due to snow load, with no injuries reported.

Blizzard in MT SHASTA/WESTERN PLUMAS COUNTY, CALIFORNIA
From 27-FEB-23 04:00:00 to 28-FEB-23 23:59:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotters in Quincy, CA reported storm total snow amounts of 16 to 22 inches. Lower Lassen Peak weather station reported 21.8 inches of storm total snow. Shingletown Cocorahs reported 20 inches of storm total snow, and Chester Cocorahs reported 30 inches of snow. Gusty winds were observed with this storm, with 47 mph reported at Humbug Summit RAWS, 45 mph reported at Colby Mountain RAWS, and 48 mph reported at Hatchet Mountain. Widespread power outages were reported.

Heavy Snow in BURNEY BASIN/EASTERN SHASTA COUNTY, CALIFORNIA
From 26-FEB-23 04:00:00 to 28-FEB-23 23:59:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

The National Operational Hydrologic Remote Sensing Center estimated 10 to 20 inches fell for storm total snow.

Heavy Snow in SHASTA LAKE/NORTH SHASTA COUNTY, CALIFORNIA
From 26-FEB-23 04:00:00 to 28-FEB-23 23:59:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter at SIMS reported 22 inches at an elevation of 2800 feet. The National Operational Hydrologic Remote Sensing Center estimated 6 to 24 inches fell for storm total snow. Interstate 5 northbound was closed at Fawndale due to winter weather conditions.