Surface high pressure centered over Idaho and Nevada brought strong offshore winds to Southern California from November 8th through 13th. The highest wind gust from the event was 85 mph at Sill Hill on November 12th. The air mass on November 8-10th was extremely dry with dewpoints observed at -25 to -40F between 6000 and 9000 feet (matched NKX sounding data). Fuel moisture measured by the USFS was at historical lows (100 and 1000 hour). Power was cut from many wildfire prone communities in anticipation of high winds. Some power lines were knocked over from the winds, but there were no significant fire starts. USFS reported several small wildfires during night hours but they were able to quick control the blazes before spreading.

High Wind in SAN DIEGO COUNTY MOUNTAINS, CALIFORNIA
From 12-NOV-18 08:00:00 to 12-NOV-18 09:00:00 (PST-8)
Magnitude: 74.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Sill Hill Mesonet reported a wind gust of 74 knots between 0800 and 0900 PST on November 12th.

High Wind in ORANGE COUNTY INLAND, CALIFORNIA
From 08-NOV-18 18:00:00 to 08-NOV-18 19:00:00 (PST-8)
Magnitude: 64.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Fremont Canyon Mesonet reported a wind gust of 64 knots between 1800 and 1900 PST on November 8th.

High Wind in SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS - THE INLAND EMPIRE, CALIFORNIA
From 08-NOV-18 12:00:00 to 08-NOV-18 13:00:00 (PST-8)
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

CalState San Bernardino Mesonet reported a wind gust of 56 knots between 1200 and 1300 PST on November 8th.

High Wind in SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS - THE INLAND EMPIRE, CALIFORNIA
From 11-NOV-18 12:00:00 to 11-NOV-18 13:00:00 (PST-8)
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

CalState San Bernardino Mesonet reported a wind gust of 51 knots between 1200 and 1300 PST on November 11th.

High Wind in SAN DIEGO COUNTY DESERTS, CALIFORNIA
From 12-NOV-18 10:00:00 to 12-NOV-18 11:00:00 (PST-8)
Magnitude: 59.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Crestwood Mesonet reported a wind gust of 59 knots between 1000 and 1100 PST on November 12th.

High Wind in SAN DIEGO COUNTY VALLEYS, CALIFORNIA
From 12-NOV-18 09:00:00 to 12-NOV-18 10:00:00 (PST-8)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Witch Creek Mesonet reported a wind gust of 50 knots between 0900 and 1000 PST on November 12th.

High Wind in SAN DIEGO COUNTY MOUNTAINS, CALIFORNIA
From 12-NOV-18 09:00:00 to 12-NOV-18 10:00:00 (PST-8)
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Boulder Creek Mesonet reported a 54 knot wind gust between 0900 and 1000 PST on November 12th.

High Wind in SAN DIEGO COUNTY MOUNTAINS, CALIFORNIA
From 12-NOV-18 08:00:00 to 12-NOV-18 09:00:00 (PST-8)
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Alpine Mesonet reported a wind gust of 60 knots between 0800 and 0900 PST on November 12th.

High Wind in SAN DIEGO COUNTY MOUNTAINS, CALIFORNIA
From 12-NOV-18 09:00:00 to 12-NOV-18 10:00:00 (PST-8)
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Sherilton Valley Mesonet reported a 51 knot wind gust between 0900 and 1000 PST on November 12th.

High Wind in SAN DIEGO COUNTY MOUNTAINS, CALIFORNIA
From 12-NOV-18 08:00:00 to 12-NOV-18 09:00:00 (PST-8)
Magnitude: 58.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet hp016 near Santa Ysabel reported a 58 knot wind gust between 0800 and 0900 PST on November 12th.

High Wind in SAN DIEGO COUNTY MOUNTAINS, CALIFORNIA
From 12-NOV-18 09:00:00 to 12-NOV-18 10:00:00 (PST-8)
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Hellhole Canyon Mesonet reported a wind gust of 54 knots between 0900 and 1000 PST on November 12th.

High Wind in SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS - THE INLAND EMPIRE, CALIFORNIA
From 12-NOV-18 12:00:00 to 12-NOV-18 13:00:00 (PST-8)
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Highland Springs Mesonet reported a 54 knot wind gust between 1200 and 1300 PST on November 12th.

High Wind in SANTA ANA MOUNTAINS AND FOOTHILLS, CALIFORNIA
From 12-NOV-18 06:00:00 to 12-NOV-18 07:00:00 (PST-8)
Magnitude: 58.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Fremont Canyon Mesonet reported a 50 knot wind gust between 0600 and 0700 PST on November 12th.

Strong Wind in SAN DIEGO COUNTY VALLEYS, CALIFORNIA
From 13-NOV-18 12:00:00 to 13-NOV-18 13:00:00 (PST-8)
Magnitude: 36.00 MG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Mesonet

West Rancho Bernardo Mesonet reported a 35 knot wind gust between 1200 and 1300 PST on November 13th. Utility company preemptively shut off power in this area in anticipation of strong winds. Downed power lines were reported in the area on the morning of November 13th.

Strong Wind in SAN DIEGO COUNTY VALLEYS, CALIFORNIA
From 13-NOV-18 12:00:00 to 13-NOV-18 13:00:00 (PST-8)
Magnitude: 23.00 MG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Mesonet

Rancho Santa Fe Mesonet reported a 22 knot wind gust between 1200 and 1300 PST on November 13th. The utility company reported downed power lines in the area where they preemptively shut off power due to forecast strong winds.

High Wind in SAN DIEGO COUNTY MOUNTAINS, CALIFORNIA
From 13-NOV-18 07:00:00 to 13-NOV-18 08:00:00 (PST-8)
Magnitude: 61.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Alpine Mesonet reported a wind gust of 60 knots between 0700 and 0800 PST on November 13th.

High Wind in SAN DIEGO COUNTY MOUNTAINS, CALIFORNIA
From 13-NOV-18 05:00:00 to 13-NOV-18 06:00:00 (PST-8)
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Otay Mountain Mesonet reported a wind gust of 52 knots between 0500 and 0600 PST on November 13th.

High Wind in SAN DIEGO COUNTY MOUNTAINS, CALIFORNIA
From 13-NOV-18 10:00:00 to 13-NOV-18 11:00:00 (PST-8)
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station povsd (Pamo Valley) reported a wind gust of 55 knots between 1000 to 1100 PST on November 13th.