A strong trough moved inland along the California Coast on the 31st. The trough was accompanied by a surface low that rapidly deepened in the Southern California Bight and an exceptionally strong Pacific Cold Front. A broken line of thunderstorms formed along the leading edge of the front, and combined with post frontal winds to produce extensive wind damage over the coast and valleys. The County of San Diego received over 500 calls for downed trees. While the wind were the main player with this system, significant precipitation was observed. A remnant atmospheric river produced efficient orographic effects, resulting in 2.5 to 4.5 inches of rain along the west and south-facing slopes. Snow levels fell as low as 4000 ft, with moderate accumulations above 6000 ft.

High Wind in SAN DIEGO COUNTY VALLEYS, CALIFORNIA
From 31-JAN-16 16:14:00 to 31-JAN-16 23:59:00 (PST-8)
Magnitude: 64.00 MG
Crop damage: 0.00K
Reported by: Mesonet

Multiple mesonet stations at Otay Mountain reported wind gusts in excess of 58 mph between 1614 and 2359 PST, with a peak gust of 74 mph. Nearby Lyons Peak gusted to 60 mph between 2135 and 2145 PST. Numerous large trees were downed in the surrounding valleys.

High Wind in SAN DIEGO COUNTY COASTAL AREAS, CALIFORNIA
From 31-JAN-16 20:01:00 to 31-JAN-16 23:59:00 (PST-8)
Magnitude: 56.00 MG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Mesonet

Multiple mesonet stations measured wind gusts in excess of 58 mph all along the San Diego County coast. The strongest gust occurred at Cabrillo National Monument where a 64 mph gust was reported. The winds caused extensive tree damage along the coast.

Thunderstorm Wind in SAN DIEGO, CALIFORNIA
From 31-JAN-16 14:30:00 to 31-JAN-16 15:00:00 (PST-8)
Location: PACIFIC BEACH
Magnitude: 52.00 EG
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A pine tree 8 ft in diameter succumbed to strong winds, falling on 4 cars and killing a 48 year old woman who was driving down Ingraham Street. An additional tree fell during the cleanup operations, injuring 2 reporters.

High Wind in SAN DIEGO COUNTY COASTAL AREAS, CALIFORNIA
From 31-JAN-16 20:00:00 to 31-JAN-16 23:59:00 (PST-8)
Magnitude: 52.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Lifeguard

The 20 ft light tower on the North Mission Bay Jetty was destroyed by high winds. Winds at surrounding coastal mesonet sites were gusting to 60 mph. The tower was a steel lattice structure.

High Wind in SAN DIEGO COUNTY MOUNTAINS, CALIFORNIA
From 31-JAN-16 15:20:00 to 31-JAN-16 15:50:00 (PST-8)
Magnitude: 74.00 MG
Crop damage: 0.00K
Reported by: Mesonet

Multiple mesonet stations reported winds in excess of 70 mph during this period. The strongest winds were reported at the Harrison Park and Luck Five Ranch mesonets, where respective 85 mph and 80 mph wind gusts occurred between 1520 and 1530 PST.

High Wind in SAN DIEGO COUNTY MOUNTAINS, CALIFORNIA
From 31-JAN-16 21:50:00 to 31-JAN-16 22:30:00 (PST-8)
Magnitude: 63.00 MG
Crop damage: 0.00K
Reported by: Mesonet

Multiple mesonet stations reported wind gusts in excess of 70 mph during this period, with a peak gust of 72 mph at the Harrison Park mesonet between 2150 and 2200 PST.

Thunderstorm Wind in SAN DIEGO, CALIFORNIA
From 31-JAN-16 14:00:00 to 31-JAN-16 15:00:00 (PST-8)
Location: (SAN)SAN DIEGO INTL
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Broadcast Media

High winds blew out windows in a downtown skyscraper.

High Wind in SAN DIEGO COUNTY COASTAL AREAS, CALIFORNIA
From 31-JAN-16 21:00:00 to 31-JAN-16 23:59:00 (PST-8)
Magnitude: 52.00 EG
Property damage: 250.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Multiple boats were pulled from their moorings by strong winds, they were blown up against a boardwalk and partially submerged.

Heavy Snow in SAN BERNARDINO COUNTY MOUNTAINS, CALIFORNIA
From 31-JAN-16 12:00:00 to 31-JAN-16 23:59:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

San Bernardino Department of Public Works reported 12 inches of storm total snowfall in Big Bear, elevation 6750 ft.

Heavy Snow in SAN BERNARDINO COUNTY MOUNTAINS, CALIFORNIA
From 31-JAN-16 12:00:00 to 31-JAN-16 23:59:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

San Bernardino Department of Public Works reported 14 inches of storm total snowfall in Fawnskin, elevation 6825 ft.

Thunderstorm Wind in SAN DIEGO, CALIFORNIA
From 31-JAN-16 14:53:00 to 31-JAN-16 15:12:00 (PST-8)
Location: RAMONA ARPT
Magnitude: 51.00 MG
Crop damage: 0.00K
Reported by: ASOS

A 59 mph thunderstorm wind gust occurred at the Ramon Airport ASOS.

Thunderstorm Wind in SAN DIEGO, CALIFORNIA
From 31-JAN-16 15:10:00 to 31-JAN-16 15:41:00 (PST-8)
Location: SANTA YSABEL
Magnitude: 63.00 MG
Crop damage: 0.00K
Reported by: Mesonet

Multiple mesonet stations in the Santa Ysabel and Julian area reported thunderstorm wind gusts of 58 to 72 mph. The peak gust of 72 mph occurred at Hoskings Ranch between 2320 and 2330 PST.

Thunderstorm Wind in SAN DIEGO, CALIFORNIA
From 31-JAN-16 15:30:00 to 31-JAN-16 15:50:00 (PST-8)
Location: PINE HILLS
Magnitude: 61.00 MG
Crop damage: 0.00K
Reported by: Mesonet

Two mesonet stations at Lake Cuyamaca reported thunderstorm wind gusts between 64 and 70 mph.

High Wind in SAN DIEGO COUNTY MOUNTAINS, CALIFORNIA
From 31-JAN-16 15:09:00 to 31-JAN-16 15:50:00 (PST-8)
Magnitude: 74.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Multiple mesonet stations reported wind gusts in excess of 70 mph during this period, with a peak gust of 85 mph at the Harrison Park mesonet between 1520 and 1530 PST.

Thunderstorm Wind in SAN DIEGO, CALIFORNIA
From 31-JAN-16 15:50:00 to 31-JAN-16 16:00:00 (PST-8)
Location: BOULEVARD
Magnitude: 51.00 MG
Crop damage: 0.00K
Reported by: Mesonet

The Boulevard West mesonet reported a thunderstorm wind gust of 59 mph.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 31-JAN-16 15:00:00 to 31-JAN-16 16:00:00 (PST-8)
Location: CRESTLINE
Flood cause: Heavy Rain
Property damage: 1.50K
Crop damage: 0.00K
Reported by: Department of Highways

Large rock slide blocking the south bound lanes of State Highway 18.

High Wind in SAN BERNARDINO COUNTY MOUNTAINS, CALIFORNIA
From 31-JAN-16 12:00:00 to 31-JAN-16 17:00:00 (PST-8)
Magnitude: 62.00 MG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Mesonet

Winds downed trees in Wrightwood and caused damage to multiple utility poles in the near Lake Arrowhead. The strongest measured winds were at the Heaps Peak mesonet station, where sustained winds in the upper 30s and a peak gust of 71 mph occurred from 1315 to 1515 PST.

High Wind in APPLE AND LUCERNE VALLEYS, CALIFORNIA
From 31-JAN-16 13:51:00 to 31-JAN-16 14:06:00 (PST-8)
Magnitude: 52.00 MG
Crop damage: 0.00K
Reported by: Mesonet

A mesonet station 3 miles southwest of Hesperia reported a peak wind gust of 60 mph and sustianed winds in the low 30s. Strong wind gusts in the 40 to 50 mph range were reported elsewhere in the upper deserts.

High Wind in SANTA ANA MOUNTAINS AND FOOTHILLS, CALIFORNIA
From 31-JAN-16 11:00:00 to 31-JAN-16 23:00:00 (PST-8)
Magnitude: 64.00 MG
Crop damage: 0.00K
Reported by: Mesonet

Multiple mesonet stations reported wind gusts in the 50 to 70 mph range. Both the Serra Peak and Fremont Canyon mesonets reported peak wind gusts of 74 mph.

High Wind in SAN DIEGO COUNTY VALLEYS, CALIFORNIA
From 31-JAN-16 18:22:00 to 31-JAN-16 23:22:00 (PST-8)
Magnitude: 64.00 MG
Crop damage: 0.00K
Reported by: Mesonet

The Mateo Ridge mesonet reported wind gusts in excess of 58 mph for 5 hours, with a peak gust of 74 mph between 1922 and 2022 PST. Numerous large trees were downed in the surrounding valleys.

High Wind in ORANGE COUNTY INLAND, CALIFORNIA
From 31-JAN-16 20:50:00 to 31-JAN-16 21:00:00 (PST-8)
Magnitude: 51.00 MG
Crop damage: 0.00K
Reported by: Mesonet

The San Clemente Ridge mesonet station reported a gust to 59 mph, with multiple additional gusts in excess of 50 mph between 1720 and 2320 PST. Tree damage was reported over other inland portions of the county.

High Wind in ORANGE COUNTY COASTAL, CALIFORNIA
From 31-JAN-16 15:55:00 to 31-JAN-16 23:55:00 (PST-8)
Magnitude: 41.00 MS
Crop damage: 0.00K
Reported by: Mesonet

The San Clemente Pier reported sustained winds in excess of 40 mph for a period of 8 hours, with a peak of 47 mph. Winds caused tree damage along the coast.

Thunderstorm Wind in ORANGE, CALIFORNIA
From 31-JAN-16 13:45:00 to 31-JAN-16 14:00:00 (PST-8)
Location: EAST IRVINE
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm wind gust estimated at 60 mph by a trained spotter.

Thunderstorm Wind in SAN DIEGO, CALIFORNIA
From 31-JAN-16 14:18:00 to 31-JAN-16 14:28:00 (PST-8)
Location: OCEANSIDE
Magnitude: 52.00 MG
Crop damage: 0.00K
Reported by: Mesonet

The Oceanside Jetty reported a 60 mph thunderstorm wind gust.

Strong Wind in ORANGE COUNTY INLAND, CALIFORNIA
From 31-JAN-16 15:00:00 to 31-JAN-16 15:30:00 (PST-8)
Magnitude: 43.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

CHP reported 1.5 ft diameter 100 ft tall eucalyptus tree downed by strong winds. The tree damaged a street sign.

Thunderstorm Wind in SAN DIEGO, CALIFORNIA
From 31-JAN-16 14:30:00 to 31-JAN-16 14:45:00 (PST-8)
Location: CHULA VISTA JCT
Magnitude: 51.00 MG
Crop damage: 0.00K
Reported by: Mesonet

The Silver Strand mesonet reported a thunderstorm wind gust of 59 mph.

Thunderstorm Wind in SAN DIEGO, CALIFORNIA
From 31-JAN-16 14:50:00 to 31-JAN-16 15:00:00 (PST-8)
Location: CAMP ELLIOT
Magnitude: 59.00 MG
Crop damage: 0.00K
Reported by: Mesonet

The mesonet station at Mission Trails reported a 68 mph thunderstorm wind gust.

Thunderstorm Wind in SAN DIEGO, CALIFORNIA
From 31-JAN-16 15:20:00 to 31-JAN-16 15:30:00 (PST-8)
Location: ALPINE
Magnitude: 51.00 MG
Crop damage: 0.00K
Reported by: Mesonet

A 59 mph thunderstorm wind gust reported at the Anderson Valley mesonet.