A strong surface high pressure area over the Great Basin resulted in gusty east to northeast winds near the mountain crests, in the coastal foothills, and western inland valleys, including the Inland Empire. Gusty winds began on the 21st, reaching peak strength on the 23rd through 24th. Several stations recorded gusts above 65 mph. Damage included several trees and power lines down in the Inland Empire and foothills of San Diego County. There were also reports of two semi trucks overturned, one in Rancho Cucamonga, and the other just west of Pine Valley.

High Wind in SANTA ANA MOUNTAINS AND FOOTHILLS, CALIFORNIA
From 24-JAN-15 00:00:00 to 24-JAN-15 22:00:00 (PST-8)
Magnitude: 67.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

High winds occurred at the Fremont Canyon RAWS between 0000-2200 PST on the 24th. During this time, winds were sustained out of the ENE at 35-40 mph with gusts in the 60s and 70s. A peak gust of 77 mph was recorded between 0651-0751 PST. High winds occurred at the Pleasants Peak mesonet between 0222-1352 PST on the 24th. During this time, winds were sustained out of the ENE at 40-50 mph with gusts in the upper 50s and 60s. A peak gust of 63 mph was recorded twice between 0852-0952 PST.

High Wind in SAN DIEGO COUNTY VALLEYS, CALIFORNIA
From 24-JAN-15 01:52:00 to 24-JAN-15 23:52:00 (PST-8)
Magnitude: 63.00 MG
Property damage: 1.50K
Crop damage: 0.00K
Reported by: RAWS

High winds occurred at the Alpine RAWS site between 0152 to 2352 PST on the 24th. During this time, sustained winds out of the NE reached 35-45 mph with gusts in the high 50s to low 70s. A peak gust of 72 mph was recorded between 0952 and 1052 PST on the 24th. A wind gust of 73 mph was also measured an 0921 PST near the city of Poway by a trained weather spotter using a vortex anemometer. An additional wind gust of 62 mph was recorded at the Hellhole Canyon Mesonet station between 0610 and 0620 PST. Finally, California Highway Patrol reported power lines and a pole down across both lanes on Sutherland Dam Road at 1328 PST.

High Wind in SAN DIEGO COUNTY MOUNTAINS, CALIFORNIA
From 23-JAN-15 21:10:00 to 24-JAN-15 23:30:00 (PST-8)
Magnitude: 77.00 MG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Mesonet

High winds occurred at the Sill Hill Mesonet between 2110 PST on the 23rd and 2330 PST on the 24th. During this time, winds were sustained out of the E at 35-55 mph with most gusts in the high 50s to mid 70s. However, a peak gust of 89 mph was recorded between 0720-0730 PST on the 24th. Strong winds also occurred at the Big Black Mountain (peak gust of 81 mph between 0737 and 0747 on the 24th), West Santa Ysabel (peak gust of 58 mph between 0830 and 0840 on the 24th), Viejas Grade (peak gust of 67 mph between 0830 and 0840 on the 24th), and KG6SIB Descanso (peak gust of 59 mph between 1014 and 1024 on the 24th) mesonet sites. The California Highway Patrol also reported a semi truck knocked on its side near the intersection of Interstate 8 and State Highway 79 due to strong winds at 0937 PST.

High Wind in SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS - THE INLAND EMPIRE, CALIFORNIA
From 24-JAN-15 04:00:00 to 24-JAN-15 14:00:00 (PST-8)
Magnitude: 60.00 MG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: RAWS

High winds occurred at the Highland Springs RAWS between 0516-0716 PST on the 24th. During this time, winds were sustained out of the ENE at 40-50 mph with gusts in the 60s. A peak gust of 69 mph was recorded between 0616-0716 PST. The Ontario Airport ASOS recorded a peak gust of 64 mph around 0405 PST on the 24th. ABC7 news reported several trees down due to wind in Rancho Cucamonga and Alta Loma, as well as power lines down and customers without electricity in Fontana. One large tree fell on a car, completely crushing it, in Rancho Cucamonga. CHP also reported a big rig flipped over into a ditch along Highway 210 near the Interstate 15 junction, likely wind-related.