A strong low pressure system moving down the Pacific Coast tapped into sub-tropical moisture, bringing heavy rain and strong winds from the night of December 26th through the 27th. A wind advisory was issued for the immediate coastline and coastal mountains and East Bay Hills. A Flood Watch covered the same coastal areas and the North Bay valleys, and several Urban and Small Stream Flood Advisories were issued for areas under the Watch.

High Wind in MARIN COASTAL RANGE, CALIFORNIA
From 27-DEC-22 00:50:00 to 27-DEC-22 00:50:00 (PDT-7)
Magnitude: 64.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

A 74 mph gust was recorded at the PGE weather station at Road to Ranches.

High Wind in EAST BAY HILLS, CALIFORNIA
From 27-DEC-22 01:50:00 to 27-DEC-22 01:50:00 (PST-8)
Magnitude: 64.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

A 74 mph gust was recorded at the PGE weather station at Mines Tower.

Flood in CONTRA COSTA, CALIFORNIA
From 27-DEC-22 06:00:00 to 27-DEC-22 07:00:00 (PST-8)
Location: CAMEO ACRES
Flood cause: Heavy Rain
Property damage: 0.01K
Crop damage: 0.00K
Reported by: Broadcast Media

The roof of a Big 5 Sporting Goods store in San Ramon caved in the early morning hours of the 27th after a main beam broke in the center of the store. Local officials from the San Ramon Valley Protection District stated that they believed heavy rain was a factor in the roof collapse. The collapse caused water and debris to flow into the Big 5; the Rite Aid pharmacy next door was also flooded. Nearby businesses in the shopping center were closed as a precaution.

High Wind in EAST BAY HILLS, CALIFORNIA
From 27-DEC-22 03:10:00 to 27-DEC-22 03:10:00 (PST-8)
Magnitude: 66.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

A 76 mph gust was recorded at the PGE weather station at South Black Diamond Way.

Flood in MONTEREY, CALIFORNIA
From 27-DEC-22 07:39:00 to 27-DEC-22 14:59:00 (PST-8)
Location: CHUALAR
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

CHP reported flooding on Northbound US Highway 101 at Chualar.

Strong Wind in SOUTHERN MONTEREY BAY AND BIG SUR COAST, CALIFORNIA
From 27-DEC-22 07:00:00 to 27-DEC-22 08:00:00 (PST-8)
Magnitude: 35.00 EG
Crop damage: 0.00K
Reported by: Broadcast Media

A small tug and barge became unmoored in Monterey Bay at the Monterey Wharf. The Coast Guard brought the boat back to its mooring.

High Wind in SANTA CRUZ MOUNTAINS, CALIFORNIA
From 27-DEC-22 02:32:00 to 27-DEC-22 02:32:00 (PST-8)
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

A 65 mph gust was reported at the Los Gatos RAWS.

High Wind in NORTH BAY INTERIOR MOUNTAINS, CALIFORNIA
From 27-DEC-22 00:30:00 to 27-DEC-22 00:30:00 (PDT-7)
Magnitude: 61.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

A 70 mph gust was recorded at the PGE weather station at Cobb Ridge West.

Flood in SAN FRANCISCO, CALIFORNIA
From 27-DEC-22 07:12:00 to 27-DEC-22 07:12:00 (PST-8)
Location: SAN FRANCISCO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

CHP reported around 1 foot of flooding on Southbound US Highway 101 near Folsom Street in the number 2 and 3 lanes.

Strong Wind in EAST BAY INTERIOR VALLEYS, CALIFORNIA
From 27-DEC-22 11:30:00 to 27-DEC-22 13:00:00 (PST-8)
Magnitude: 17.00 EG
Property damage: 0.01K
Crop damage: 0.00K
Reported by: Broadcast Media

A tree fell onto power lines near the intersection of Moraga and Rimrock Roads, causing Moraga Road to be closed from Sky Hy Drive (Yes, that spelling is correct.) and St Mary's Road in Lafayette.

Flood in SANTA CRUZ, CALIFORNIA
From 27-DEC-22 05:00:00 to 27-DEC-22 08:00:00 (PST-8)
Location: RIO DEL MAR
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Heavy rain and high levels on Aptos Creek led to street flooding in the Rio Del Mar neighborhood of Aptos, trapping several people in their homes.

High Wind in COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE, CALIFORNIA
From 27-DEC-22 03:10:00 to 27-DEC-22 03:10:00 (PST-8)
Magnitude: 61.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

A 70 mph gust was recorded at the PGE weather station at Wolfback Ridge.

Flood in MONTEREY, CALIFORNIA
From 27-DEC-22 11:00:00 to 27-DEC-22 12:00:00 (PST-8)
Location: SANTA RITA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

The Santa Rita Creek overflowed into the Bolsa Knolls neighborhood of Salinas, as reported by KSBW television.