A rapidly intensifying and ultimately record setting low pressure system moved into northern California and the Pacific Northwest in late November. A strong cold front associated with this system swept through the Bay Area bringing heavy rain, roadway flooding, strong winds, low elevation snow, small hail, and large waves to the region. This low set a record for the lowest sea-level pressure ever recorded in the state of California near Crescent City of 973.4 mb. Numerous webcams picked up snow on our area peaks down to 2000 feet in elevation.

Flood in SAN FRANCISCO, CALIFORNIA
From 26-NOV-19 15:26:00 to 26-NOV-19 15:56:00 (PST-8)
Location: SAN FRANCISCO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Roadway flooding at US 101N and 9th St off ramp.

Flood in SAN FRANCISCO, CALIFORNIA
From 26-NOV-19 16:04:00 to 26-NOV-19 16:34:00 (PST-8)
Location: CRISSY AAF
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Roadway flooding at S Van Ness Ave and S Van Ness Ave on ramp.

Flood in CONTRA COSTA, CALIFORNIA
From 26-NOV-19 20:15:00 to 26-NOV-19 20:45:00 (PST-8)
Location: WALNUT CREEK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Media reported flooded roads at the intersection of Broadway and Cypress St in Walnut Creek.

Flood in SANTA CLARA, CALIFORNIA
From 26-NOV-19 22:07:00 to 26-NOV-19 22:37:00 (PST-8)
Location: MONTALVO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

California Highway Patrol reporting roadway flooding at Black Rd and Gist Rd.

Flood in SANTA CRUZ, CALIFORNIA
From 26-NOV-19 22:44:00 to 26-NOV-19 23:14:00 (PST-8)
Location: WATSONVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Hwy 152 at Holohan Rd eastbound lane under 1 foot of water.

Flood in SANTA CLARA, CALIFORNIA
From 26-NOV-19 23:37:00 to 27-NOV-19 00:07:00 (PST-8)
Location: CAMPBELL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

SB I-280 under Winchester Blvd is under 3 inches of water.

Strong Wind in NORTH BAY INTERIOR VALLEYS, CALIFORNIA
From 26-NOV-19 19:00:00 to 26-NOV-19 19:05:00 (PST-8)
Magnitude: 47.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station on Angel Island reported a wind gust of 54 mph.

Strong Wind in EAST BAY INTERIOR VALLEYS, CALIFORNIA
From 26-NOV-19 19:03:00 to 26-NOV-19 19:08:00 (PST-8)
Magnitude: 39.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Tree down on roadway off ramp near Richmond.

High Wind in EAST BAY HILLS AND THE DIABLO RANGE, CALIFORNIA
From 26-NOV-19 19:18:00 to 26-NOV-19 19:23:00 (PST-8)
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station on Calaveras Rd.

Strong Wind in SAN FRANCISCO PENINSULA COAST, CALIFORNIA
From 26-NOV-19 19:18:00 to 26-NOV-19 19:23:00 (PST-8)
Magnitude: 44.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station on Spring Valley.

Strong Wind in EAST BAY HILLS AND THE DIABLO RANGE, CALIFORNIA
From 26-NOV-19 19:28:00 to 26-NOV-19 19:33:00 (PST-8)
Magnitude: 48.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station Black Diamond.

High Wind in EAST BAY HILLS AND THE DIABLO RANGE, CALIFORNIA
From 26-NOV-19 19:28:00 to 26-NOV-19 19:33:00 (PST-8)
Magnitude: 61.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station at Las Trampas.

Strong Wind in EAST BAY HILLS AND THE DIABLO RANGE, CALIFORNIA
From 26-NOV-19 19:12:00 to 26-NOV-19 19:17:00 (PST-8)
Magnitude: 43.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station in Altamont.

Strong Wind in NORTHERN SALINAS VALLEY / HOLLISTER VALLEY / CARMEL VALLEY, CALIFORNIA
From 26-NOV-19 19:30:00 to 26-NOV-19 19:35:00 (PST-8)
Magnitude: 43.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station (PGE) in Carmel Valley Village.

High Wind in SANTA CRUZ MOUNTAINS, CALIFORNIA
From 26-NOV-19 19:40:00 to 26-NOV-19 19:45:00 (PST-8)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station 5 miles ESE of Lexington Hills.

Strong Wind in NORTHERN MONTEREY BAY, CALIFORNIA
From 26-NOV-19 19:46:00 to 26-NOV-19 19:51:00 (PST-8)
Magnitude: 43.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station in Santa Cruz.

Strong Wind in EAST BAY HILLS AND THE DIABLO RANGE, CALIFORNIA
From 26-NOV-19 19:57:00 to 26-NOV-19 20:02:00 (PST-8)
Magnitude: 45.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Tree down 7 miles ENE of Fremont.

Flood in SAN FRANCISCO, CALIFORNIA
From 26-NOV-19 19:00:00 to 26-NOV-19 19:30:00 (PST-8)
Location: OCEAN VIEW
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

KPIX reported flooding on I-280 near Ocean Ave causing a severe traffic alert to be issued https://sanfrancisco.cbslocal.com/video/4222933-chp-issues-traffic-alert-as-severe-rain-causes-flooding-on-i-280-in-sf/. Timing is estimated.

Strong Wind in SAN FRANCISCO BAY SHORELINE, CALIFORNIA
From 26-NOV-19 20:11:00 to 26-NOV-19 23:30:00 (PST-8)
Magnitude: 45.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Thousands of residents around the Bay Area lost power as a storm moved through the region https://www.kron4.com/news/bay-area/thousands-without-power-across-bay-area-amid-storm-conditions/. Timing is estimated.

Strong Wind in NORTHERN SALINAS VALLEY / HOLLISTER VALLEY / CARMEL VALLEY, CALIFORNIA
From 26-NOV-19 20:00:00 to 26-NOV-19 20:05:00 (PST-8)
Magnitude: 46.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet (PGE) in Carmel Valley Village.

High Wind in SOUTHERN MONTEREY BAY AND BIG SUR COAST, CALIFORNIA
From 26-NOV-19 21:09:00 to 26-NOV-19 21:14:00 (PST-8)
Magnitude: 57.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station 3 miles NW of Castroville.

Strong Wind in NORTH BAY INTERIOR VALLEYS, CALIFORNIA
From 26-NOV-19 21:10:00 to 26-NOV-19 21:15:00 (PST-8)
Magnitude: 45.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Large tree down blocking roadway 4 miles N of Napa.

Strong Wind in MOUNTAINS OF SAN BENITO COUNTY AND INTERIOR MONTEREY COUNTY INCLUDING PINNACLES NATIONAL PARK, CALIFORNIA
From 26-NOV-19 21:20:00 to 26-NOV-19 21:25:00 (PST-8)
Magnitude: 46.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Meonet station (PGE) 3 miles WSW of San Juan Batista.

Strong Wind in NORTHERN MONTEREY BAY, CALIFORNIA
From 26-NOV-19 22:44:00 to 26-NOV-19 22:49:00 (PST-8)
Magnitude: 45.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Swanton Road closed in the 44 block due to down trees and wires.

Hail in ALAMEDA, CALIFORNIA
From 26-NOV-19 23:00:00 to 26-NOV-19 23:05:00 (PST-8)
Location: OAKLAND
Magnitude: 0.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reporting pea-sized hail in Alameda. Reported via twitter.

Hail in SAN FRANCISCO, CALIFORNIA
From 27-NOV-19 04:00:00 to 27-NOV-19 04:05:00 (PST-8)
Location: CRISSY AAF
Magnitude: 0.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotter reported pea-sized hail  in San Francisco.

Flood in ALAMEDA, CALIFORNIA
From 26-NOV-19 20:11:00 to 26-NOV-19 20:41:00 (PST-8)
Location: MILLS COLLEGE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Severe flooding reported on westbound I-80 at High Street in Oakland https://www.kron4.com/news/bay-area/thousands-without-power-across-bay-area-amid-storm-conditions/.

High Wind in COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE, CALIFORNIA
From 26-NOV-19 18:40:00 to 26-NOV-19 18:45:00 (PST-8)
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station (PGE) 0.6 miles SW of Sausalito.

High Wind in NORTH BAY MOUNTAINS, CALIFORNIA
From 26-NOV-19 17:50:00 to 26-NOV-19 17:55:00 (PST-8)
Magnitude: 57.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station 2.1 miles NW of Lucas Valley-Marinwood.

High Wind in COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE, CALIFORNIA
From 26-NOV-19 17:30:00 to 26-NOV-19 17:40:00 (PST-8)
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station 1.8 miles W of Bodega Bay.

Strong Wind in NORTH BAY INTERIOR VALLEYS, CALIFORNIA
From 26-NOV-19 17:50:00 to 26-NOV-19 17:55:00 (PST-8)
Magnitude: 40.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Meesonet station (PGE) 1.7 miles S of Temelec.