A low pressure system moving in from the Gulf of Alaska and drawing in moisture from the tropics combined to bring the first atmospheric river event of the winter season to the Greater Bay Area. This system brought widespread heavy rainfall, roadway flooding, and strong winds to the region. Rare Storm Warnings were issued over the coastal waters where buoys reported wind gusts in excess of 50 mph. Bay Area peaks recorded wind gusts between 60 to 70 mph with gusts along the Monterey Peninsula and Big Sur Coast at 50 to 60 mph. These winds caused downed trees and power outages across the area.

Flood in ALAMEDA, CALIFORNIA
From 30-NOV-19 12:02:00 to 30-NOV-19 12:32:00 (PST-8)
Location: ALAMEDA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Roadway flooding on WB Hwy 980 on Jackson St off ramp.

Flood in SAN FRANCISCO, CALIFORNIA
From 30-NOV-19 12:18:00 to 30-NOV-19 12:48:00 (PST-8)
Location: SAN FRANCISCO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Roadway flooding at 455 8th St in San Francisco.

Flood in MONTEREY, CALIFORNIA
From 30-NOV-19 13:00:00 to 30-NOV-19 13:30:00 (PST-8)
Location: CARMEL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Street at 3438 Martin Rd in Carmel, CA is flooding along with potential flooding at residence as water is being diverted down reporting party's driveway.

Flood in MONTEREY, CALIFORNIA
From 30-NOV-19 13:15:00 to 30-NOV-19 13:45:00 (PST-8)
Location: SALINAS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Standing water in number 2 lane at SR-183 and E Market St.

Flood in MARIN, CALIFORNIA
From 30-NOV-19 13:19:00 to 30-NOV-19 13:49:00 (PST-8)
Location: SANTA VENETIA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Vehicles hydroplaning in number 3 and 4 lines on Hwy 101.

Flood in SONOMA, CALIFORNIA
From 30-NOV-19 14:01:00 to 30-NOV-19 14:31:00 (PST-8)
Location: SEBASTOPOL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Flooding in SB lanes of Watertrough Rd and Blackney, vehicles are hydroplaning due to large amount of water in the roadway.

Flood in MARIN, CALIFORNIA
From 30-NOV-19 14:06:00 to 30-NOV-19 14:36:00 (PST-8)
Location: CARTE MADERA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

NB 101 on off ramp near San Clemente Dr flooding with 3 feet of water at the bottom of the off ramp.

Flood in SAN MATEO, CALIFORNIA
From 30-NOV-19 14:55:00 to 30-NOV-19 15:25:00 (PST-8)
Location: (SQL)SAN CARLOS ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

US 101-N and Ralston Ave on ramp sink hole in slow lane.

Heavy Rain in MONTEREY, CALIFORNIA
From 30-NOV-19 10:20:00 to 30-NOV-19 17:00:00 (PST-8)
Location: LUCIA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Temporary closure of Hwy 1 at Paul's Slide (mm 21.6) today at 5 pm until further notice, rainfall unknown.

Strong Wind in SANTA CRUZ MOUNTAINS, CALIFORNIA
From 30-NOV-19 14:14:00 to 30-NOV-19 14:19:00 (PST-8)
Magnitude: 40.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Tree down blocking both lanes of SR-9 at 4770 in Felton.

Strong Wind in NORTHERN SALINAS VALLEY / HOLLISTER VALLEY / CARMEL VALLEY, CALIFORNIA
From 30-NOV-19 14:19:00 to 30-NOV-19 14:24:00 (PST-8)
Magnitude: 40.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Power pole leaning into street on Potter Road and swinging in the wind.

Strong Wind in SOUTHERN MONTEREY BAY AND BIG SUR COAST, CALIFORNIA
From 30-NOV-19 18:17:00 to 30-NOV-19 18:22:00 (PST-8)
Magnitude: 40.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Tree in northbound lane of HWY 1 6 miles south of Del Monte Forest.

High Wind in SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST, CALIFORNIA
From 30-NOV-19 16:00:00 to 30-NOV-19 16:05:00 (PST-8)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station (PGE) 16.9 miles NW of Lake Nacimiento.

Strong Wind in NORTHERN SALINAS VALLEY / HOLLISTER VALLEY / CARMEL VALLEY, CALIFORNIA
From 30-NOV-19 15:00:00 to 30-NOV-19 15:05:00 (PST-8)
Magnitude: 40.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station (PGE) 0.7 miles NE of Carmel Valley Village.

Strong Wind in SAN FRANCISCO PENINSULA COAST, CALIFORNIA
From 30-NOV-19 23:55:00 to 30-NOV-19 23:59:00 (PST-8)
Magnitude: 40.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Half Moon Bay Airport ASOS recorded wind gust of 46 mph.

Strong Wind in COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE, CALIFORNIA
From 30-NOV-19 22:40:00 to 30-NOV-19 22:45:00 (PST-8)
Magnitude: 41.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station (PGE) on Point Reyes.

Strong Wind in NORTH BAY MOUNTAINS, CALIFORNIA
From 30-NOV-19 16:29:00 to 30-NOV-19 18:29:00 (PST-8)
Magnitude: 44.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

Atlas Peak RAWS station recorded wind gusts between 46 and 51 mph.

Strong Wind in SANTA CRUZ MOUNTAINS, CALIFORNIA
From 30-NOV-19 22:30:00 to 30-NOV-19 22:35:00 (PST-8)
Magnitude: 47.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station (PGE) 3.1 miles S of Highlands.

Strong Wind in SANTA CLARA VALLEY INCLUDING SAN JOSE, CALIFORNIA
From 30-NOV-19 23:22:00 to 30-NOV-19 23:27:00 (PST-8)
Magnitude: 41.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

San Jose Airport ASOS recorded gusts.

Strong Wind in SAN FRANCISCO PENINSULA COAST, CALIFORNIA
From 30-NOV-19 22:57:00 to 30-NOV-19 23:03:00 (PST-8)
Magnitude: 43.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station in Las Trancas.

Strong Wind in EAST BAY HILLS AND THE DIABLO RANGE, CALIFORNIA
From 30-NOV-19 21:18:00 to 30-NOV-19 23:18:00 (PST-8)
Magnitude: 49.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

Calaveras Road RAWS station recorded gusts between 46 and 56 mph.

Heavy Rain in SAN BENITO, CALIFORNIA
From 29-NOV-19 15:57:00 to 29-NOV-19 16:27:00 (PST-8)
Location: IDRIA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station in Santa Rita recorded 0.41 inches of rain. Timing is estimated.

Heavy Rain in MONTEREY, CALIFORNIA
From 29-NOV-19 15:55:00 to 29-NOV-19 16:25:00 (PST-8)
Location: PARKFIELD
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station in Parkfield recorded heavy rainfall, 0.98 inches. Timing estimated.