A trough of low pressure dug into Southern California from February 15-17, bringing cold northerly flow. This brought rain and thunderstorms, snow showers, and windy conditions across the area.

High Wind in RIVERSIDE COUNTY MOUNTAINS, CALIFORNIA
From 17-FEB-22 00:00:00 to 18-FEB-22 00:00:00 (PST-8)
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Gusty Santa Ana winds occurred across the region with widespread gusts 40-50 MPH. Toro Peak recorded a peak wind gust of 64 MPH.

Frost/Freeze in SAN DIEGO COUNTY VALLEYS, CALIFORNIA
From 18-FEB-22 00:00:00 to 18-FEB-22 10:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Cold temperatures 25-35 degrees led to some areas of frost throughout the San Diego County valleys.

Heavy Rain in ORANGE, CALIFORNIA
From 15-FEB-22 18:30:00 to 16-FEB-22 19:30:00 (PST-8)
Location: SILVERADO
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heavy rain occurred near the town of Silverado and the Holy Fire burn scar. Maximum rain rate of 0.57 inches in one hour.

High Wind in SAN DIEGO COUNTY MOUNTAINS, CALIFORNIA
From 15-FEB-22 00:00:00 to 16-FEB-22 00:00:00 (PST-8)
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Gusty winds occurred across the region with widespread gusts 40-50 MPH. Volcan Mountain recorded a peak wind gust of 62 MPH.

High Wind in APPLE AND LUCERNE VALLEYS, CALIFORNIA
From 15-FEB-22 00:00:00 to 16-FEB-22 00:00:00 (PST-8)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Gusty winds occurred across the region with widespread gusts 40-50 MPH. Borrego Springs recorded a peak wind gust of 58 MPH.

High Wind in RIVERSIDE COUNTY MOUNTAINS, CALIFORNIA
From 15-FEB-22 00:00:00 to 16-FEB-22 00:00:00 (PST-8)
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Gusty winds occurred across the region with Toro Peak recording a peak wind gust of 73 MPH.

Heavy Snow in SAN BERNARDINO COUNTY MOUNTAINS, CALIFORNIA
From 15-FEB-22 12:00:00 to 16-FEB-22 12:00:00 (PST-8)
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Department of Highways

Heavy snow fell across the region with 8 inches near Running Springs, 10 to 12 inches near Lake Arrowhead, and 2 inches of snow near the top of the Cajon Pass. The snowfall at Lake Arrowhead occurred at a peak rate of 3 inches per hour during the the evening 4-7PM. This led to dozens of spinouts and accidents, including the closure of a portion of State Route 18 near Rim Forrest and Lake Arrowhead for snow and ice. Other forms of precipitation were reported, including thundersnow, hail and graupel.

High Wind in SAN GORGONIO PASS NEAR BANNING, CALIFORNIA
From 15-FEB-22 00:00:00 to 16-FEB-22 00:00:00 (PST-8)
Magnitude: 64.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Gusty winds occurred across the region with widespread gusts 40-60 MPH. Whitewater recorded a peak wind gust of 74 MPH.

High Wind in SAN BERNARDINO COUNTY MOUNTAINS, CALIFORNIA
From 15-FEB-22 00:00:00 to 16-FEB-22 00:00:00 (PST-8)
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Gusty winds occurred across the region with widespread gusts 40-50 MPH. Some stations reported recorded a peak wind gust near 65 MPH, including Cushenbury Springs.

High Wind in SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS - THE INLAND EMPIRE, CALIFORNIA
From 17-FEB-22 00:00:00 to 18-FEB-22 00:00:00 (PST-8)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Gusty Santa Ana winds occurred across the region with widespread gusts 30-50 MPH.

High Wind in SANTA ANA MOUNTAINS AND FOOTHILLS, CALIFORNIA
From 17-FEB-22 00:00:00 to 18-FEB-22 00:00:00 (PST-8)
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Gusty Santa Ana winds occurred across the region with widespread gusts 40-50 MPH. Santiago Peak recorded a peak wind gust of 65 MPH.

High Wind in ORANGE COUNTY INLAND, CALIFORNIA
From 17-FEB-22 00:00:00 to 18-FEB-22 00:00:00 (PST-8)
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Gusty Santa Ana winds occurred across the region with widespread gusts 40-50 MPH. Chino Hills RAWS recorded a peak wind gust of 64 MPH.