Strong winds moved through the area during the early morning hours of Friday, October 4. Winds gusted high enoguh to down trees and powerlines, causing several wildfires to ignite and spread quickly.

High Wind in EAST BAY HILLS AND THE DIABLO RANGE, CALIFORNIA
From 04-OCT-13 01:45:00 to 04-OCT-13 01:45:00 (PST-8)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

Measured 57 MPH gust at Los Vaqueros RAWS at elevation 1100 feet.

Strong Wind in EAST BAY HILLS AND THE DIABLO RANGE, CALIFORNIA
From 04-OCT-13 04:30:00 to 04-OCT-13 04:30:00 (PST-8)
Magnitude: 47.00 MG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Newspaper

Fences were knocked down due to strong winds in Oakland along Monterey Boulevard. A large tree was knocked down at Skyline and Redwood Roads. Wind gusts were measured at 54 MPH at the Oakland North RAWS at this time. The RAWS is located at 1400 feet elevation.

Strong Wind in EAST BAY INTERIOR VALLEYS, CALIFORNIA
From 04-OCT-13 05:00:00 to 04-OCT-13 05:00:00 (PST-8)
Magnitude: 43.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Newspaper

A tree was downed due to strong winds outside Alamo in the community of Diablo. The downed tree blocked the road into the Diablo Country Club neighborhood.

Strong Wind in SAN FRANCISCO BAY SHORELINE, CALIFORNIA
From 04-OCT-13 03:00:00 to 04-OCT-13 03:00:00 (PST-8)
Magnitude: 43.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Newspaper

In San Leandro, a huge tree was downed due to strong winds on Halceon Avenue.

Strong Wind in NORTH BAY INTERIOR VALLEYS, CALIFORNIA
From 04-OCT-13 09:00:00 to 04-OCT-13 09:00:00 (PST-8)
Magnitude: 35.00 MG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Newspaper

In Napa, strong winds caused a tree to fall on a pickup truck. It happened in the area of Solano and Oak Knoll Avenues. The tree shattered the windshield and the branches went into the truck.

Strong Wind in SAN FRANCISCO, CALIFORNIA
From 04-OCT-13 11:00:00 to 04-OCT-13 11:00:00 (PST-8)
Magnitude: 39.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Utility Company

During the event, power outages impacted up to 2000 customers in the San Francisco Metro area.

Wildfire in NORTH BAY MOUNTAINS, CALIFORNIA
From 04-OCT-13 01:00:00 to 04-OCT-13 11:00:00 (PST-8)
Reported by: Fire Department/Rescue

Downed power lines ignited a wild fire along Berryessa Knoxville Road in Napa County on the north side of Lake Berryessa. The fire spread quickly due to 40-50 MPH wind and consumed over 400 acres but was contained by early afternoon. No structures were damaged or destroyed.

Strong Wind in SAN FRANCISCO, CALIFORNIA
From 04-OCT-13 04:00:00 to 04-OCT-13 04:00:00 (PST-8)
Magnitude: 39.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Newspaper

Strong winds in San Francisco knocked over two stories of scaffolding at a building under renovation at 20th and Deharo Streets. The scaffolding fell into a set of power lines.

Strong Wind in SAN FRANCISCO, CALIFORNIA
From 04-OCT-13 04:00:00 to 04-OCT-13 04:00:00 (PST-8)
Magnitude: 39.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Newspaper

A large tree was blown over and blocked 3 of the 4 lanes of traffic on Masonic Avenue and Fell Street early Friday morning.