An extended period of offshore flow caused strong to high winds across much of Southern California. The first high wind event occurred during the afternoon and evening hours of the 5th as the upper level support was peaking. High winds were realized in many locations despite the fact that this peak occurred during the diurnally least favored time for Santa Ana winds. Wind gusts reached 75 mph at Fremont Canyon, 64 mph at Rancho Cucamonga, 63 mph at El Cariso, 59 mph at Rialto, 57 mph at Case Springs, 55 mph at Ontario. Winds were sustained 55 mph at Rancho Cucamonga, 52 mph at Fremont Canyon, and 40 mph at Ontario. Damaged or downed power poles were reported in Nuevo, Yucaipa, and Perris, while widespread damage to trees or tree limbs was reported in many other areas. Blowing dust reduced visibility to near zero along interstate 215 and the Ramona Expressway. Elsewhere, high winds in the San Bernardino Mountains near Rim Forest forced vehicles to slide across and off icy stretches of highway 18. Large trees fell onto homes and cars in the Lake Arrowhead area. Small, wind-driven wildfires were reported along interstate 15 near Mormon Rocks and the Cajon Pass.
The second high wind event occurred during the early morning hours of the 7th and the 8th. Wind gusts measured 84 mph at Fremont Canyon and 62 mph at Rialto. Sustained winds at these locations measured 51 mph and 45 mph respectively. The winds caused more damage to trees, flipped over a semi, and left numerous residents without power.
As is typical of most Santa Ana events, Fremont Canyon experienced the worst of the winds. Between the 5th and the 7th, Fremont Canyon RAWS measured 24 wind gusts of 60 mph or greater, 6 wind gusts of 70 mph or greater, and 2 wind gusts in excess of 80 mph.

High Wind in SAN BERNARDINO COUNTY MOUNTAINS, CALIFORNIA
From 05-JAN-07 04:57:00 to 05-JAN-07 04:57:00 (PST-8)
Magnitude: 52.00 EG
Property damage: 350.00K
Crop damage: 0.00K
Reported by: Law Enforcement

High Wind in SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS - THE INLAND EMPIRE, CALIFORNIA
From 07-JAN-07 03:42:00 to 07-JAN-07 05:45:00 (PST-8)
Magnitude: 54.00 MG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Mesonet

High Wind in SANTA ANA MOUNTAINS AND FOOTHILLS, CALIFORNIA
From 07-JAN-07 02:30:00 to 07-JAN-07 12:30:00 (PST-8)
Magnitude: 73.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wildfire in SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS - THE INLAND EMPIRE, CALIFORNIA
From 05-JAN-07 21:24:00 to 07-JAN-07 10:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Downed power lines sparked a 670 acre wildfire near Lake Mathews. Gusty Santa Ana winds were to blame for the rapid spread of this fire. No structures were damage.

High Wind in SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS - THE INLAND EMPIRE, CALIFORNIA
From 05-JAN-07 11:19:00 to 05-JAN-07 22:00:00 (PST-8)
Magnitude: 56.00 MG
Property damage: 250.00K
Crop damage: 0.00K
Reported by: Mesonet

High Wind in SANTA ANA MOUNTAINS AND FOOTHILLS, CALIFORNIA
From 05-JAN-07 10:30:00 to 06-JAN-07 03:30:00 (PST-8)
Magnitude: 65.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wildfire in SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS - THE INLAND EMPIRE, CALIFORNIA
From 07-JAN-07 06:00:00 to 08-JAN-07 06:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Named the Red Star Fire, this fire buned approximately 175 acres near Prado Regional Park in Chino. Gusty Santa Ana winds were to blame for the rapid spread of the fire. No injuries were reported and no structures were burned.