A powerful atmospheric river brought very strong winds with moderate to heavy rain and renewed flooding of the already elevated waterways. There was flooding of roadways, urban areas, rivers, streams, and creeks. There were dangerous mountain travel conditions at Sierra pass levels with 6 to 18 inches of snow above 6500 feet. The warm nature of the storm limited snow amounts further down, with just a few inches of accumulation down to 6000 feet. Winds gusted up to 50-60 mph in the Valley, with gusts up to 70 to 100 mph in the mountains. There were widespread trees down, blocking roads and causing numerous power outages across the area. Rainfall amounts were 1 to 3 inches in the Central Valley and 2 to 6 inches in the foothills and mountains. There were 2 fatalities reported, one due to drowning, and the other due to a rain-related car accident.

Flood in PLACER, CALIFORNIA
From 05-JAN-23 20:08:00 to 06-JAN-23 02:00:00 (PST-8)
Location: OPHIR
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

CHP reported rock slide at Wise Road and Ophir Road resulting in road closure of Ophir Road to Interstate 80 on-ramp.

Flood in YUBA, CALIFORNIA
From 05-JAN-23 20:10:00 to 05-JAN-23 23:00:00 (PST-8)
Location: RAMIREZ
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The California Highway Patrol reported roadway flooding in the Yuba Sutter area, along the southbound lane of  Mathews Lane at Ramirez Rd.

Heavy Rain in YUBA, CALIFORNIA
From 04-JAN-23 20:00:00 to 04-JAN-23 20:30:00 (PST-8)
Location: DOBBINS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The California Highway Patrol reported rock and dirt blocking Marysville Rd, near intersection with Oregon Hill Rd. Nearby Reader Ranch RAWS received .27 in one hour.

Heavy Snow in WEST SLOPE NORTHERN SIERRA NEVADA, CALIFORNIA
From 04-JAN-23 07:00:00 to 06-JAN-23 04:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Caltrans reported chain controls and delays at Donner Pass and Echo Summit due to heavy, wet, high-elevation snow. Caltrans held eastbound traffic on Interstate 80 for several hours due to spinouts the night of the 5th. Ski resorts reported 6 to 18 inches of snow from January 4-5, 2023.  For storm total snowfall, UC Berkeley Central Sierra Snow Lab reported 8.7 inches, Bear Valley Ski Resort reported 17 inches, Boreal Ski Resort reported 6 inches, Dodge Ridge Ski Resort reported 16 inches, Kirkwood Ski Resort reported 13 inches, Sierra-at-Tahoe Ski Resort reported 18 inches, Soda Springs Ski Resort reported 6 inches, Sugar Bowl Ski Resort reported 7 inches, and Caltrans reported 14 inches at Echo Summit.

Heavy Snow in MT SHASTA/WESTERN PLUMAS COUNTY, CALIFORNIA
From 04-JAN-23 07:00:00 to 06-JAN-23 04:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Lower Lassen Peak reported a storm total of 26 inches of snowfall. NORHSC National Gridded Snow Analysis estimated a storm total 8 to 24 inches of storm total snow fell over portions of the Lassen Area and western Plumas County above 5000 feet.

Flood in EL DORADO, CALIFORNIA
From 03-JAN-23 00:00:00 to 03-JAN-23 23:59:00 (PST-8)
Location: COLOMA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

On January 3 in El Dorado County, a 33 year-old male drowned in the South Fork of the American River near Coloma, CA. It is unknown how he ended up in the river.

High Wind in SOUTHERN SACRAMENTO VALLEY, CALIFORNIA
From 04-JAN-23 17:00:00 to 04-JAN-23 18:00:00 (PST-8)
Magnitude: 45.00 MG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A very large tree was reported in the roadway at Mccomber St, Florin, approximately 40 feet tall. KSMF reported at 04:53 PM PST SSE 31 gust 45mph, 06:53 PM PST S 24 mph gust 45mph,  peak gust at 6:06 PM PST 52 mph. KSAC reported at 04:53 PM PST SE 22 gust 40mph, 5:53 PM PST S 21 mph gust 35mph.

High Wind in MOTHERLODE/CAMPTONVILLE TO GROVELAND, CALIFORNIA
From 04-JAN-23 17:00:00 to 04-JAN-23 18:15:00 (PST-8)
Magnitude: 34.00 MG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A very large tree was reported in the roadway blocking the lane on a blind curve. Placerville Airport reported from the south at 29 mph with a gust of 39 mph at 6:15 pm PST.

High Wind in SOUTHERN SACRAMENTO VALLEY, CALIFORNIA
From 04-JAN-23 17:00:00 to 04-JAN-23 18:00:00 (PST-8)
Magnitude: 38.00 MG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A vehicle ended up in a yard avoiding a fallen tree blocking Morse Ave.  McClellan Airport reported a south southeast wind of 32 mph with a gust of 44 mph at 5:55 pm PST.

High Wind in SOUTHERN SACRAMENTO VALLEY, CALIFORNIA
From 04-JAN-23 17:00:00 to 04-JAN-23 18:00:00 (PST-8)
Magnitude: 38.00 MG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A vehicle ended up in a yard avoiding a fallen tree blocking Morse Ave in Sacramento.  McClellan Airport reported a south southeast wind of 32 mph with a gust of 44 mph at 5:55 pm PST.

High Wind in CENTRAL SACRAMENTO VALLEY, CALIFORNIA
From 04-JAN-23 17:00:00 to 04-JAN-23 19:54:00 (PST-8)
Magnitude: 29.00 MG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

On SR 32 near Platt Mountain Road, a very large tree was reported in the roadway blocking both lanes. Oroville Airport reported a gust from the south of 33 mph.

High Wind in CENTRAL SACRAMENTO VALLEY, CALIFORNIA
From 04-JAN-23 17:00:00 to 04-JAN-23 19:54:00 (PST-8)
Magnitude: 29.00 MG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

On Skyway in De Sabla, powerlines were reported down blocking the whole roadway. Oroville Airport reported a gust from the south of 33 mph.

High Wind in MOTHERLODE/CAMPTONVILLE TO GROVELAND, CALIFORNIA
From 04-JAN-23 17:00:00 to 04-JAN-23 18:15:00 (PST-8)
Magnitude: 34.00 MG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A fallen tree was reported in the roadway blocking the northbound lane of Burson Rd. in Burson. Placerville Airport reported winds from the south at 29 mph with a gust of 39 mph at 6:15 pm PST.

High Wind in SOUTHERN SACRAMENTO VALLEY, CALIFORNIA
From 04-JAN-23 17:00:00 to 04-JAN-23 20:00:00 (PST-8)
Magnitude: 44.00 MG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A big tree fell down near Eastern & El Camino in the Arden-Arcade area of Sacramento County. The tree fell on a car.  McClellan Airfield reported gusts of 45 to 51 mph through the evening.

High Wind in NORTHERN SACRAMENTO VALLEY, CALIFORNIA
From 04-JAN-23 17:00:00 to 04-JAN-23 22:00:00 (PST-8)
Magnitude: 52.00 MG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was completely blocking both lanes of Kimberly Rd. Winds at Redding Airport gusted to 60 mph at 22:00 PST.

High Wind in NORTHERN SACRAMENTO VALLEY, CALIFORNIA
From 04-JAN-23 17:00:00 to 04-JAN-23 22:00:00 (PST-8)
Magnitude: 52.00 MG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was completely blocking both lanes of Kimberly Rd. Winds at Redding Airport gusted to 52 mph.

High Wind in NORTHERN SACRAMENTO VALLEY, CALIFORNIA
From 04-JAN-23 22:00:00 to 04-JAN-23 23:00:00 (PST-8)
Magnitude: 52.00 MG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: ASOS

A large tree fell on top of a home in Redding, damaging the roof and a fence. A branch came through the ceiling. Winds at Redding Airport gusted to 60 mph at 22:00 PST.

High Wind in CENTRAL SACRAMENTO VALLEY, CALIFORNIA
From 04-JAN-23 17:00:00 to 04-JAN-23 20:19:00 (PST-8)
Magnitude: 29.00 MG
Property damage: 7.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A power pole and a tree were leaning over Aguas Frias Rd. Wind gusts to 33 mph were reported at nearby Chico Airport.

Flood in SOLANO, CALIFORNIA
From 04-JAN-23 08:39:00 to 04-JAN-23 11:00:00 (PST-8)
Location: VACAVILLE JCT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A woman died in a crash likely caused by speed and standing water in Fairfield on Vanden Road at One Lake. Investigators said the roadway was partially flooded due to rain from the recent downpours. Police said the woman was heading eastbound on the road when she came across a patch of standing water and hydroplaned before losing control of the vehicle and crashing into a utility pole.

High Wind in CENTRAL SACRAMENTO VALLEY, CALIFORNIA
From 04-JAN-23 17:00:00 to 04-JAN-23 22:36:00 (PST-8)
Magnitude: 37.00 MG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A large pine tree was uprooted blocking all of Melvina Ave. Oroville Airport had gusts to 43 mph.

High Wind in SOUTHERN SACRAMENTO VALLEY, CALIFORNIA
From 04-JAN-23 17:00:00 to 05-JAN-23 01:00:00 (PST-8)
Magnitude: 38.00 MG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A large pine tree was uprooted blocking Madison Ave near Primrose Ave. Sacramento Executive Airport had gusts to 44 mph. As of 1 am, there were around 15,000 customers without power in the SMUD area and thousands without power in the PG&E area.

Flood in YOLO, CALIFORNIA
From 04-JAN-23 19:55:00 to 05-JAN-23 23:00:00 (PST-8)
Location: MAJOR VISTA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The California Highway Patrol reported 1/2 foot of water flooding on the westbound lane of SR128 at the intersection with The Horseshoe.

Flood in GLENN, CALIFORNIA
From 04-JAN-23 22:00:00 to 05-JAN-23 01:00:00 (PST-8)
Location: FRUTO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Water ponded on County Road 306 near the Glenn - Colusa Line.

Flood in YOLO, CALIFORNIA
From 04-JAN-23 23:20:00 to 05-JAN-23 03:00:00 (PST-8)
Location: NORTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The CHP reported CR 88 closed between CR 27 and CR 29 due to roadway flooding.

Flood in BUTTE, CALIFORNIA
From 05-JAN-23 00:35:00 to 05-JAN-23 05:00:00 (PST-8)
Location: VILLA VERONA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Road flooding from heavy rain caused a car to be stuck in knee deep water.

Flood in SACRAMENTO, CALIFORNIA
From 05-JAN-23 03:54:00 to 05-JAN-23 07:00:00 (PST-8)
Location: ELK GROVE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

There was roadway flooding on Northbound SR 99 at Elk Grove Blvd. due to heavy rains.

Flood in SACRAMENTO, CALIFORNIA
From 05-JAN-23 03:55:00 to 05-JAN-23 08:00:00 (PST-8)
Location: CITRUS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

There was roadway flooding at eastbound US Highway 50 and Sunrise Blvd.

Flood in BUTTE, CALIFORNIA
From 05-JAN-23 10:58:00 to 05-JAN-23 15:00:00 (PST-8)
Location: MULLBERRY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Road closure at Southgate Dr. due to flooding.

Flood in SACRAMENTO, CALIFORNIA
From 05-JAN-23 11:23:00 to 05-JAN-23 15:00:00 (PST-8)
Location: NORTH HIGHLANDS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A lane was reported flooded by the California Highway Patrol between Elkhorn Blvd. and Sprig Dr. near North Highlands.

Flood in SOLANO, CALIFORNIA
From 05-JAN-23 11:30:00 to 05-JAN-23 15:00:00 (PST-8)
Location: VACAVILLE NUT TREE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Roadway flooding was reported by the California Highway Patrol between I-80 and Allison Drive.

Flood in SAN JOAQUIN, CALIFORNIA
From 05-JAN-23 11:42:00 to 05-JAN-23 17:00:00 (PST-8)
Location: ORTEGA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Roadway flooding was reported in Stockton by the California Highway Patrol between Interstate 5 northbound and Downing Ave.

Flood in SACRAMENTO, CALIFORNIA
From 05-JAN-23 11:56:00 to 05-JAN-23 16:00:00 (PST-8)
Location: FAIR OAKS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Roadway flooding was reported between Sunrise Blvd. and Sunset Ave. near Fair Oaks by the California Highway Patrol.

Flood in SAN JOAQUIN, CALIFORNIA
From 05-JAN-23 12:40:00 to 05-JAN-23 17:40:00 (PST-8)
Location: LINCOLN VLG
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Roadway flooding was reported on northbound Interstate 5 near Benjamin Holt Drive by the California Highway Patrol.

Flood in EL DORADO, CALIFORNIA
From 05-JAN-23 12:56:00 to 05-JAN-23 16:00:00 (PST-8)
Location: CLARKSVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Roadway flooding was reported on the Silva Valley Pkwy by the California Highway Patrol.

Flood in PLACER, CALIFORNIA
From 05-JAN-23 12:56:00 to 05-JAN-23 18:00:00 (PST-8)
Location: SHERIDAN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The California Highway Patrol reported flooding at West Wise Rd and South Brewer Rd in Lincoln.

Flood in SACRAMENTO, CALIFORNIA
From 05-JAN-23 12:59:00 to 05-JAN-23 16:00:00 (PST-8)
Location: FAIR OAKS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The California Highway Patrol reported a flooded intersection at Sunrise Blvd. and Madison Ave.

Flood in BUTTE, CALIFORNIA
From 05-JAN-23 13:08:00 to 05-JAN-23 19:00:00 (PST-8)
Location: BIDWELL BAR
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The California Highway Patrol reported rocks along the Oroville Quincy Highway due to flooding near Simmons Road.

Flood in SACRAMENTO, CALIFORNIA
From 05-JAN-23 13:21:00 to 05-JAN-23 16:21:00 (PST-8)
Location: MAYHEW
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The California Highway Patrol reported roadway flooding at Jackson Road and Eagles
Nest Road near the Sacramento Muslim Cemetery.

Flood in SACRAMENTO, CALIFORNIA
From 05-JAN-23 13:25:00 to 05-JAN-23 16:00:00 (PST-8)
Location: BRIDGE HOUSE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The California Highway Patrol reported 6-8 inches of water in the roadway at Scott Road and Latrobe Road near Rancho Murieta.

Flood in SAN JOAQUIN, CALIFORNIA
From 05-JAN-23 13:42:00 to 05-JAN-23 17:00:00 (PST-8)
Location: FOREST LAKE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The California Highway Patrol reported a flooded intersection at Liberty Rd. and Dustin Rd.

Flood in EL DORADO, CALIFORNIA
From 05-JAN-23 14:54:00 to 05-JAN-23 18:00:00 (PST-8)
Location: CLARKSVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The California Highway Patrol reported 7-8 inches of water going over the roadway at Tam Oshanter Dr. and Canterbury Cir.

Flood in SACRAMENTO, CALIFORNIA
From 05-JAN-23 15:04:00 to 05-JAN-23 18:00:00 (PST-8)
Location: FOOTHILL FARMS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The California Highway Patrol reported 6 -8 inches of water going over the road at Elkhorn Blvd. and Hillsdale Blvd.