A strong, low latitude jet stream brought a series of storms through Southern California with periods of moderate to heavy rain/snow, thunderstorms, gusty winds, and high surf. Three-day rainfall totals were around 2 to 7 inches for the coast/valley/foothill areas, and 1 to 3 inches for the deserts. The mountains received a wide range of snow amounts, ranging from 6 to 30 inches, most of which fell above 5000 feet. The highest amounts were in the San Bernardino and Riverside County Mountains, with 20 to 30 inches in several locations. Several trees, power lines and poles were downed from wind. A plane approaching San Diego International Airport was struck by lightning on the morning of the 7th, but no injuries or damage reported. Countless flooding reports also came out of the heavy rain accompanying this system, with southwestern San Diego County being hardest hit. Several reports of pea size hail came out of Carlsbad, Poway (accumulation of about 1 inch near I-15 and Carmel Mountain Road), and some in Orange County as well.

Thunderstorm Wind in SAN DIEGO, CALIFORNIA
From 06-JAN-16 14:50:00 to 06-JAN-16 15:10:00 (PST-8)
Location: PONTO
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A mesonet station approximately a mile WSW of the Carlsbad-Palomar Airport recorded two gusts to 62 mph as a line of storms passed through the area between 1450-1510 PST.

Thunderstorm Wind in SAN DIEGO, CALIFORNIA
From 06-JAN-16 15:00:00 to 06-JAN-16 15:30:00 (PST-8)
Location: SORRENTO
Magnitude: 50.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A roof collapsed at the FedEx building in Miramar.

Thunderstorm Wind in SAN DIEGO, CALIFORNIA
From 06-JAN-16 14:45:00 to 06-JAN-16 15:30:00 (PST-8)
Location: BUENA
Magnitude: 43.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Department of Highways

A 20-foot tree was knocked over by thunderstorm wind gusts estimated around 50 mph. The tree blocked Fortuna Ranch Road.

Thunderstorm Wind in SAN DIEGO, CALIFORNIA
From 06-JAN-16 15:00:00 to 06-JAN-16 15:30:00 (PST-8)
Location: POWAY
Magnitude: 48.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: NWS Employee

An NWS employee reported 15 trees snapped or uprooted near Poway Road and Sabre Springs Road, with some being as large as 18 inches in diameter. Broadcast media reported strong winds in Poway toppled a tree, which fell onto a car.

Heavy Snow in RIVERSIDE COUNTY MOUNTAINS, CALIFORNIA
From 06-JAN-16 07:00:00 to 07-JAN-16 15:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall began during the evening of the 5th, continued in a few main heavy periods, and wrapping up by the afternoon of the 7th. Criteria was met sometime in the evening of the 6th. Two-day snowfall totals for Riverside County mountain locations include: 14-16 inches at Pine Cove and Fern Valley near Idyllwild and 23 inches at the Long Valley Ranger Station in San Jacinto State Park.

Heavy Snow in SAN BERNARDINO COUNTY MOUNTAINS, CALIFORNIA
From 05-JAN-16 19:00:00 to 07-JAN-16 17:00:00 (PST-8)
Property damage: 8.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall began during the evening of the 5th, continued in a few main heavy periods, and wrapping up by the afternoon of the 7th. Criteria was met sometime in the evening of the 6th. Two-day snowfall totals for San Bernardino County mountain locations include: 24 inches in Forest Falls near Highway 38 (downed trees and power lines), 18 inches at the end of Mount Baldy Road outside the village, 17 inches at the Big Bear Lake COOP (2.04 liquid equiv), 12 inches in Wrightwood/Big Bear City/Snow Summit/Arrowbear Lake, and 9 inches in Barton Flats.

High Surf in SAN DIEGO COUNTY COASTAL AREAS, CALIFORNIA
From 05-JAN-16 10:00:00 to 05-JAN-16 19:00:00 (PST-8)
Crop damage: 0.00K
Reported by: Lifeguard

Mission Beach Lifeguards reported surf to 8 Ft.

Heavy Snow in SAN DIEGO COUNTY MOUNTAINS, CALIFORNIA
From 05-JAN-16 19:00:00 to 07-JAN-16 17:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall began during the evening of the 5th, continued in a few main heavy periods, and wrapping up by the afternoon of the 7th. Criteria was met sometime in the evening of the 6th. Two-day snowfall totals for San Diego County mountain locations include: 12 to 15 inches at the Mount Laguna Observatory and 7 inches at Palomar Mountain.

Flood in SAN BERNARDINO, CALIFORNIA
From 06-JAN-16 13:00:00 to 06-JAN-16 15:45:00 (PST-8)
Location: BRYN MAWR
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

CHP reported the Devore Road off-ramp from I-215 was closed due to flooding, as well as boulders blocking the down-bound lanes of Highway 18 south of Crestline. Broadcast media reported San Timoteo Canyon Road closed south of Redlands because of a mud and rock slide.

High Surf in SAN DIEGO COUNTY COASTAL AREAS, CALIFORNIA
From 07-JAN-16 07:00:00 to 07-JAN-16 19:00:00 (PST-8)
Crop damage: 0.00K
Reported by: Lifeguard

Mission Beach Lifeguards reported 10 to 12 ft surf with sets to 15 ft.

High Surf in ORANGE COUNTY COASTAL, CALIFORNIA
From 07-JAN-16 07:00:00 to 08-JAN-16 16:00:00 (PST-8)
Crop damage: 0.00K
Reported by: Lifeguard

Huntington Beach Lifeguards reported 7 to 10 ft surf, with max sets of 15 ft on the morning of the 8th.

Flood in RIVERSIDE, CALIFORNIA
From 06-JAN-16 15:00:00 to 06-JAN-16 16:00:00 (PST-8)
Location: RIVERSIDE JCT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

CHP reported the 14th street off-ramp on Highway 91 in Riverside was closed due to flooding.

Debris Flow in RIVERSIDE, CALIFORNIA
From 06-JAN-16 15:00:00 to 06-JAN-16 16:00:00 (PST-8)
Location: MURRIETA
Flood cause: Heavy Rain
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Law Enforcement

CHP reported a car stuck in a mudslide on De Luz Road west of Temecula.

High Surf in ORANGE COUNTY COASTAL, CALIFORNIA
From 07-JAN-16 10:00:00 to 07-JAN-16 16:00:00 (PST-8)
Crop damage: 0.00K
Reported by: Lifeguard

San Clemente Beach Lifeguards reported 6 to 8 ft surf.

High Surf in SAN DIEGO COUNTY COASTAL AREAS, CALIFORNIA
From 07-JAN-16 10:00:00 to 07-JAN-16 16:00:00 (PST-8)
Crop damage: 0.00K
Reported by: Lifeguard

Solana Beach Lifeguards reported 6 to 8 ft surf.

Flood in RIVERSIDE, CALIFORNIA
From 06-JAN-16 16:00:00 to 06-JAN-16 18:30:00 (PST-8)
Location: DESERT HOT SPGS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

CHP reported 6 inches of water covering Dillon road at Avenida Manzana, as well as minor flooding on Highway 111 near Jefferson Street in Indio.

Thunderstorm Wind in ORANGE, CALIFORNIA
From 06-JAN-16 13:00:00 to 06-JAN-16 13:30:00 (PST-8)
Location: SAN CLEMENTE
Magnitude: 48.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

A funnel cloud was sighted by several people in south San Clemente near the Orange County and San Diego County border. One house was damaged, though most likely wet microburst damage, tornado not confirmed.

Thunderstorm Wind in ORANGE, CALIFORNIA
From 06-JAN-16 12:45:00 to 06-JAN-16 13:15:00 (PST-8)
Location: SILVERADO
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

A 60 mph wind gust was recorded at the Fremont Canyon RAWS station in the Santa Ana foothills as a line of storms moved through the area.

Flash Flood in ORANGE, CALIFORNIA
From 06-JAN-16 13:00:00 to 06-JAN-16 13:30:00 (PST-8)
Location: VILLA PARK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter reported 6 of mud on Santiago Canyon Road at Lakeview in the city of Orange.

Flash Flood in ORANGE, CALIFORNIA
From 06-JAN-16 13:00:00 to 06-JAN-16 13:30:00 (PST-8)
Location: ROCHE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

CHP reported flooding on I-5 near the Avenida Pico exit.

Debris Flow in SAN DIEGO, CALIFORNIA
From 05-JAN-16 16:00:00 to 05-JAN-16 17:00:00 (PST-8)
Location: SAN PASQUAL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

CHP reported mud and two large boulders several feet in diameter blocking Highway 78 at Horizon View Drive, as well as large rocks and debris on Highway 78 near Ramona View Drive.

Flash Flood in SAN DIEGO, CALIFORNIA
From 05-JAN-16 16:00:00 to 05-JAN-16 17:00:00 (PST-8)
Location: GLENVIEW
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

CHP reported a mud and rock slide at La Cresta Road and Coyote Ridge Road in Granite Hills, just east of El Cajon.

Thunderstorm Wind in SAN DIEGO, CALIFORNIA
From 06-JAN-16 13:15:00 to 06-JAN-16 13:45:00 (PST-8)
Location: BONSALL
Magnitude: 56.00 EG
Property damage: 80.00K
Crop damage: 0.00K
Reported by: Public

Sections of two stable roofs torn off by strong thunderstorm wind gusts at the San Luis Rey Equestrian Training Facility. An NWS employee went to survey and take pictures of the damage.

Debris Flow in SAN DIEGO, CALIFORNIA
From 07-JAN-16 19:00:00 to 07-JAN-16 20:00:00 (PST-8)
Location: HARBISON CANYON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

A mudslide in the Rancho San Diego area of El Cajon on Willow Glen sent mud flowing into several homes and closed Dehesa Elementary School for at least 2 days. Nearby, the public reported 6 inches of mud across all lanes at Dehesa Road near Stallion Oaks Road.

Flash Flood in SAN DIEGO, CALIFORNIA
From 06-JAN-16 15:00:00 to 06-JAN-16 18:00:00 (PST-8)
Location: CALAVO GARDENS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

An NWS San Diego employee reported flash flooding near Los Coches and Business 8 with between 6 inches and 2.5 feet of water flowing over the road, as well as flash flooding near El Cajon Blvd. and Main Street with 6-12 of water flowing over the road. A local spotter reported 1.5 feet of water on Johnson Ave. next to Parkway Plaza in El Cajon.

Thunderstorm Wind in SAN DIEGO, CALIFORNIA
From 06-JAN-16 15:00:00 to 06-JAN-16 15:30:00 (PST-8)
Location: VISTA
Magnitude: 52.00 EG
Property damage: 60.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Strong thunderstorm winds damaged 8 buildings and downed power lines in Vista. A tornado is possible, but still under investigation.

Debris Flow in ORANGE, CALIFORNIA
From 06-JAN-16 10:00:00 to 06-JAN-16 14:00:00 (PST-8)
Location: SILVERADO
Flood cause: Heavy Rain / Burn Area
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Orange County Public Works reported three moderate debris flows in the Silverado Canyon area between 1200-1400 PST on the 6th. The first was 40-50 cubic yards long and occurred at Silverado Canyon Road and Hafra Way blocking the road. The second was at the K-rail 100-200 feet past Smeisic Ranch, was 1-2 feet deep and 10 cubic yards long and blocked Silverado Canyon Road at that location. The third was at the Smeisic Ranch ravine about 20-30 cubic yards across but did not cross the road. The road was cleared and re-opened at 0100 on the 7th. As of 1330 PST, rainfall amounts over past 6 hours were 1.22 inches, 0.94 inches over past 3 hours and 0.39 inches over past hour at Silverado Motorway Gage. Rainfall of 2.2 inches over past 6 hours, 1.65 inches over past 3 hours, and 0.71 inches over past hour were observed at Upper Silverado Canyon.

Flood in SAN DIEGO, CALIFORNIA
From 05-JAN-16 15:00:00 to 07-JAN-16 14:00:00 (PST-8)
Location: OVERLOOK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The San Diego River at Fashion Valley crested above action stage 4 times, and above flood stage once between the afternoon of the 5th and the afternoon of the 7th. The river remained above action stage for almost this entire time, except for a brief period below that level during the afternoon of the 6th. Flood stage was reached between 1930-2130 PST on the 5th, cresting at 11.9 feet around 2000 PST. This resulted in mostly minor flooding of surrounding areas in Mission Valley, including low water crossings and nearby parking lots.

Flash Flood in SAN DIEGO, CALIFORNIA
From 06-JAN-16 15:00:00 to 06-JAN-16 18:00:00 (PST-8)
Location: SORRENTO
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Law Enforcement

CHP reported the northbound off-ramp from Interstate 5 to Grand Avenue was closed due to severe flooding, as well as the Genesee Avenue off-ramp from Interstate 5 was flooded with several cars stuck. TV media reported a sinkhole at the end of Avenida de la Playa in la Jolla as a result of the heavy rain. A little further south the public reported 6-12 of water flowing down Newport Avenue, over the sidewalks with minor flooding of local businesses in Ocean Beach. The public reported Ward Road in Mission Valley was flooded with several cars submerged. Nine high water rescues were performed in the greater San Diego area on January 6th.