Another weekend storm delivered widespread rain, mountain snow and gusty winds to interior NorCal. Localized flooding, downed trees, and mountain travel impacts were observed starting on 12/9/22 through early 12/12/22.

Heavy Snow in WEST SLOPE NORTHERN SIERRA NEVADA, CALIFORNIA
From 09-DEC-22 21:30:00 to 12-DEC-22 04:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Caltrans reported storm total snow amounts of 34 inches at Kingvale and 54 inches at Castle Peak. UC Berkeley Central Sierra Snow Lab reported 54.5 inches of snow. Sierra at Tahoe ski resort reported 70 inches, Kirkwood resort reported 51 inches, Soda Springs resort reported 60 inches, and Sugar Bowl resort reported 52 inches. Caltrans reported the closure of Interstate 80 for approximately 17 hours, and intermittently at Highway 50. Other Sierra highway closures include highway 49, 89, 88, 4 and 108.

Strong Wind in MOTHERLODE/CAMPTONVILLE TO GROVELAND, CALIFORNIA
From 10-DEC-22 05:00:00 to 10-DEC-22 18:00:00 (PST-8)
Magnitude: 49.00 MG
Property damage: 2.40K
Crop damage: 0.00K
Reported by: Law Enforcement

California Highway Patrol reported numerous downed trees across the motherlode area due to strong winds on 12/10/2022.

Strong Wind in NORTHERN SACRAMENTO VALLEY, CALIFORNIA
From 10-DEC-22 12:00:00 to 11-DEC-22 05:00:00 (PST-8)
Magnitude: 36.00 MG
Property damage: 26.00K
Crop damage: 0.00K
Reported by: ASOS

Redding Municipal Airport reported a max gust of 41 mph. Law enforcement reported a large tree fell on a vehicle and blocked the entire roadway of Old 44.

Strong Wind in SOUTHERN SACRAMENTO VALLEY, CALIFORNIA
From 10-DEC-22 00:00:00 to 10-DEC-22 15:00:00 (PST-8)
Magnitude: 45.00 MG
Property damage: 2.40K
Crop damage: 0.00K
Reported by: ASOS

Sacramento International Airport reported a max gust of 52 mph. California Highway Patrol reported multiple downed trees and power lines across the Sacramento Area, resulting in 32,431 customers across the Sacramento region without power according to broadcast media.

Flood in SACRAMENTO, CALIFORNIA
From 10-DEC-22 11:45:00 to 10-DEC-22 17:45:00 (PST-8)
Location: DEL PASO HGTS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Roadway flooding reported on Business 80 around Cal Expo. Approximately 1 foot of water in lanes.

Flood in CALAVERAS, CALIFORNIA
From 10-DEC-22 16:00:00 to 10-DEC-22 22:00:00 (PST-8)
Location: RAILROAD FLAT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Multiple reports of roadway flooding by California Highway Patrol in and near San Andreas, including State Route 49.

Flood in STANISLAUS, CALIFORNIA
From 10-DEC-22 17:45:00 to 10-DEC-22 23:45:00 (PST-8)
Location: SOUTH MODESTO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Second and third lanes completely flooded with 2 feet of water on Highway 99 and Tuolumne Boulevard off ramp.

Flood in TUOLUMNE, CALIFORNIA
From 10-DEC-22 18:30:00 to 11-DEC-22 00:30:00 (PST-8)
Location: SOULSBYVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Roadway flooding with several inches of water reported at Via Este Road and State Route 108.

Heavy Snow in SHASTA LAKE/NORTH SHASTA COUNTY, CALIFORNIA
From 09-DEC-22 16:00:00 to 11-DEC-22 04:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Storm total snow of 8 to 24 inches were estimated by the National Operational Hydrologic Remote Sensing Center.

Flood in SACRAMENTO, CALIFORNIA
From 10-DEC-22 14:55:00 to 10-DEC-22 20:55:00 (PST-8)
Location: RANCHO CORDOVA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Roadway flooding on the onramp to Highway 50 reported at Zinfandel Drive with additional flooding in the lane.

Heavy Snow in BURNEY BASIN/EASTERN SHASTA COUNTY, CALIFORNIA
From 09-DEC-22 21:30:00 to 12-DEC-22 04:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Storm total snow ranged from 8 to 24 inches, estimated by the National Operational Hydrologic Remote Sensing Center.

Heavy Snow in MOUNTAINS SOUTHWESTERN SHASTA COUNTY TO WESTERN COLUSA COUNTY, CALIFORNIA
From 09-DEC-22 16:00:00 to 11-DEC-22 04:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Storm total snow ranged from 4 to 24 inches, estimated by the National Operational Hydrologic Remote Sensing Center.

Flood in SAN JOAQUIN, CALIFORNIA
From 10-DEC-22 15:11:00 to 10-DEC-22 21:11:00 (PST-8)
Location: ORFORD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Flooding reported near the Highway 99 and State Route 26 off ramp, and in the second and third lanes.

Heavy Snow in MT SHASTA/WESTERN PLUMAS COUNTY, CALIFORNIA
From 09-DEC-22 21:30:00 to 12-DEC-22 04:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Lower Lassen Peak reported 25 inches for storm total snow. The National Operational Hydrologic Remote Sensing Center estimated 8 to 36 inches across the area.

Flood in STANISLAUS, CALIFORNIA
From 10-DEC-22 17:30:00 to 10-DEC-22 23:30:00 (PST-8)
Location: HICKMAN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Roadway flooding reported at Montpellier Road and Whitmore Road near Foster Farms.

Flood in SACRAMENTO, CALIFORNIA
From 10-DEC-22 11:15:00 to 10-DEC-22 17:15:00 (PST-8)
Location: ARCADE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Roadway flooding on the onramp to Highway 244 from Auburn Boulevard.

Flood in STANISLAUS, CALIFORNIA
From 10-DEC-22 14:50:00 to 10-DEC-22 20:50:00 (PST-8)
Location: WEST MODESTO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Roadway flooding at Highway 99 and Kansas Avenue off ramp with 6 to 8 inches of water in the slow lane and right hand side of the road.

Flood in STANISLAUS, CALIFORNIA
From 10-DEC-22 15:50:00 to 10-DEC-22 21:50:00 (PST-8)
Location: KNIGHTS FERRY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Roadway flooding reported near State Route 120/108 and Kennedy Road.