A rapidly intensifying cyclone brought high winds to the region. A High Wind Warning was issued for the San Mateo Peninsula Coast, the Santa Cruz Mountains, and the Central Coast. In addition, a couple of Severe Thunderstorm Warnings were issued in light of the expected extreme winds for the Monterey and Santa Cruz areas. Over 110,000 customers lost power throughout the Bay Area and Santa Cruz County as a result of the cyclone.

Strong Wind in SAN FRANCISCO, CALIFORNIA
From 21-MAR-23 14:38:00 to 21-MAR-23 14:38:00 (PST-8)
Magnitude: 22.00 EG
Property damage: 0.01K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree fell and struck a vehicle, critically injuring a San Francisco Police sergeant inside.

Strong Wind in SAN FRANCISCO, CALIFORNIA
From 21-MAR-23 13:00:00 to 21-MAR-23 13:00:00 (PST-8)
Magnitude: 17.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

A person was injured after a tree fell on them near Ellis and Hyde Streets.

High Wind in SAN FRANCISCO BAY SHORELINE, CALIFORNIA
From 21-MAR-23 14:29:00 to 21-MAR-23 14:29:00 (PST-8)
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The San Francisco International Airport ASOS reported a gust of 64 mph, causing the FAA to issue a ground stop for flights to the airport.

High Wind in NORTHERN MONTEREY BAY, CALIFORNIA
From 21-MAR-23 11:50:00 to 21-MAR-23 11:50:00 (PST-8)
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Unknown

The Younger Lagoon Reserve weather station operated by the Desert Research Institute recorded a wind gust of 60 mph.

Strong Wind in SAN FRANCISCO, CALIFORNIA
From 21-MAR-23 12:00:00 to 21-MAR-23 12:00:00 (PST-8)
Magnitude: 17.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

A tree fell on a jogger at 23rd Avenue and Lincoln Way in Golden Gate Park in San Francisco. The jogger was sent to the San Francisco General Hospital, where they were pronounced dead.

High Wind in NORTH BAY INTERIOR MOUNTAINS, CALIFORNIA
From 21-MAR-23 10:00:00 to 21-MAR-23 10:00:00 (PDT-7)
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

The Santa Fe Geothermal weather station operated by PGE reported a wind gust of 59 mph.

Strong Wind in EAST BAY INTERIOR VALLEYS, CALIFORNIA
From 21-MAR-23 18:00:00 to 21-MAR-23 18:00:00 (PST-8)
Magnitude: 35.00 EG
Property damage: 0.01K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A tree fell onto a car on the 1000 block of Stanley Dollar Drive in Walnut Creek, occupied by two residents of a retirement home. Contra Costa Fire responded around 7 PM and found the driver injured and the passenger dead at the scene. The road was closed as firefighters worked to clear the scene.

Strong Wind in SAN FRANCISCO BAY SHORELINE, CALIFORNIA
From 21-MAR-23 12:34:00 to 21-MAR-23 12:34:00 (PST-8)
Magnitude: 17.00 EG
Property damage: 0.01K
Crop damage: 0.00K
Reported by: Newspaper

A tree fell onto a white van traveling eastbound near the area of Alpine Road and La Cuesta Drive just west of Interstate 280 in Portola Valley. CHP responded to the scene at 1:34 PM, cleared some large branches, and found a man dead inside. Alpine Road was closed west of Interstate 280 in both directions.

Strong Wind in SAN FRANCISCO BAY SHORELINE, CALIFORNIA
From 21-MAR-23 15:23:00 to 21-MAR-23 15:23:00 (PST-8)
Magnitude: 30.00 EG
Property damage: 0.01K
Crop damage: 0.00K
Reported by: Newspaper

A tree fell on an unhoused man in his tent near Lake Merritt in Oakland. Authorities pronounced him dead on the scene.

High Wind in SOUTHERN MONTEREY BAY AND BIG SUR COAST, CALIFORNIA
From 21-MAR-23 11:22:00 to 21-MAR-23 11:22:00 (PST-8)
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The Monterey Regional Airport ASOS reported a wind gust of 59 mph.

Strong Wind in SAN FRANCISCO, CALIFORNIA
From 21-MAR-23 15:46:00 to 21-MAR-23 19:35:00 (PST-8)
Magnitude: 39.00 EG
Property damage: 0.01K
Crop damage: 0.00K
Reported by: Law Enforcement

A big rig overturned on the Eastbound Bay Bridge (Interstate 80), blocking all the eastbound lanes for hours.

Strong Wind in SAN FRANCISCO, CALIFORNIA
From 21-MAR-23 17:00:00 to 21-MAR-23 21:00:00 (PST-8)
Magnitude: 13.00 EG
Property damage: 0.01K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Industrial barges came loose and collided with the Third Street Bridge, damaging the bridge and forcing it to close.

High Wind in SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST, CALIFORNIA
From 21-MAR-23 06:40:00 to 21-MAR-23 06:40:00 (PST-8)
Magnitude: 65.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Unknown

The Highlands Peak weather station operated by the Desert Research Institute reported a wind gust of 75 mph.

Strong Wind in SANTA CRUZ MOUNTAINS, CALIFORNIA
From 21-MAR-23 12:05:00 to 21-MAR-23 12:05:00 (PST-8)
Magnitude: 26.00 EG
Property damage: 0.01K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree fell on power lines near Glen Arbor Road in Ben Lomond, causing the communities of Ben Lomond and Boulder Creek to be cut off; the road was open by the next day but PGE crews were continuing to work on clearing debris.
Across the rest of Boulder Creek, dozens of trees fell on homes. The Boulder Creek Fire Department reported that one person was injured after a tree fell on their home, and by Wednesday afternoon, they were still unable to access some homes due to storm damage.

High Wind in SANTA CRUZ MOUNTAINS, CALIFORNIA
From 21-MAR-23 12:10:00 to 21-MAR-23 12:10:00 (PST-8)
Magnitude: 77.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

The KNPT Towers weather station operated by PGE reported a wind gust of 89 mph.

High Wind in SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST, CALIFORNIA
From 21-MAR-23 08:10:00 to 21-MAR-23 08:10:00 (PST-8)
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

The Funt Ranch weather station operated by PGE reported a wind gust of 61 mph.

Strong Wind in SOUTHERN MONTEREY BAY AND BIG SUR COAST, CALIFORNIA
From 21-MAR-23 11:52:00 to 21-MAR-23 11:52:00 (PST-8)
Magnitude: 35.00 EG
Property damage: 0.01K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree fell on California Highway 1 near Dolan Road in Moss Landing, blocking Highway 1.

Strong Wind in SAN FRANCISCO, CALIFORNIA
From 21-MAR-23 14:40:00 to 21-MAR-23 14:40:00 (PST-8)
Magnitude: 20.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Two people were injured when a tree fell on them near Post and Polk in the Nob Hill neighborhood of San Francisco. They were taken to the hospital where one of the people died.

High Wind in NORTHERN MONTEREY BAY, CALIFORNIA
From 21-MAR-23 12:00:00 to 21-MAR-23 12:00:00 (PST-8)
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A CWOP station near Boulder Creek reported a wind gust of 61 mph.

High Wind in SAN FRANCISCO BAY SHORELINE, CALIFORNIA
From 21-MAR-23 13:04:00 to 21-MAR-23 13:04:00 (PST-8)
Magnitude: 64.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The Oakland Airport ASOS reported a gust of 74 mph.

High Wind in NORTHERN MONTEREY BAY, CALIFORNIA
From 21-MAR-23 12:13:00 to 21-MAR-23 12:13:00 (PST-8)
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The Watsonville Airport ASOS reported a wind gust of 59 mph.

High Wind in SAN FRANCISCO, CALIFORNIA
From 21-MAR-23 13:00:00 to 21-MAR-23 23:00:00 (PST-8)
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

At 4:15 PM PDT the Golden Gate Bridge sensor reported a wind gust of 61 mph. Ferry service across the San Francisco Bay was cancelled due to high winds and surf starting around 2 PM and lasting through the rest of the day.