The combination of strong high pressure centered over Arizona and weak offshore flow generated extreme heat conditions across Central and Southern California. Across many sections of the area, afternoon temperatures climbed to between 100 and 114 degrees which set numerous high temperature records. The extreme heat resulted in several power outages due to excessive electrical use.

Excessive Heat in LOS ANGELES COUNTY VALLEYS, CALIFORNIA
From 21-JUN-08 12:00:00 to 21-JUN-08 19:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

An automated sensor at Northridge reported a high temperature of 109 degrees with a heat index greater than 105 degrees.

Excessive Heat in SANTA CLARITA VALLEY, CALIFORNIA
From 21-JUN-08 12:00:00 to 21-JUN-08 19:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The RAWS sensor at Newhall Pass reported a high temperature of 108 degrees with a heat index greater than 105 degrees.

Excessive Heat in LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE, CALIFORNIA
From 21-JUN-08 12:00:00 to 21-JUN-08 19:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A RAWS sensor in the Angeles National Forest reported a high temperature of 107 degrees with a heat index greater than 100 degrees.

Excessive Heat in SANTA BARBARA COUNTY MOUNTAINS, CALIFORNIA
From 21-JUN-08 16:00:00 to 21-JUN-08 19:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The RAWS sensor at Montecito reported a high temperature of 103 degrees with a heat index greater than 100 degrees.

Excessive Heat in LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE, CALIFORNIA
From 20-JUN-08 14:00:00 to 20-JUN-08 19:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The RAWS sensor at Acton reported a heat index of greater than 100 degrees.

Excessive Heat in VENTURA COUNTY MOUNTAINS, CALIFORNIA
From 20-JUN-08 14:00:00 to 20-JUN-08 19:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The RAWS sensor at Temescal reported a high temperature of 111 degrees with a heat index of 100 degrees.

Excessive Heat in SAN LUIS OBISPO COUNTY MOUNTAINS, CALIFORNIA
From 20-JUN-08 14:00:00 to 20-JUN-08 19:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The RAWS sensor at Creston reported a high temperature of 105 degrees with a heat index of greater than 100 degrees.

Excessive Heat in SANTA BARBARA COUNTY MOUNTAINS, CALIFORNIA
From 20-JUN-08 14:00:00 to 20-JUN-08 19:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The RAWS sensor at Montecito reported a high temperature of 102 degrees with a heat index of greater than 100 degrees.

Excessive Heat in SANTA YNEZ VALLEY, CALIFORNIA
From 21-JUN-08 12:00:00 to 21-JUN-08 19:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The RAWS sensor at Los Prietos reported a high temperature of 111 degrees with a heat index of greater than 105 degrees.

Excessive Heat in VENTURA COUNTY INTERIOR VALLEYS, CALIFORNIA
From 21-JUN-08 12:00:00 to 21-JUN-08 19:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The RAWS sensor at Temescal reported a high temperature of 110 degrees with a heat index greater than 105 degrees.

Excessive Heat in LOS ANGELES COUNTY VALLEYS, CALIFORNIA
From 20-JUN-08 13:00:00 to 20-JUN-08 19:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The ASOS at Van Nuys Airport reported a high temperature of 109 degrees with a heat index of 105 degrees.

Excessive Heat in VENTURA COUNTY COASTAL VALLEYS, CALIFORNIA
From 20-JUN-08 14:00:00 to 20-JUN-08 19:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

An automated sensor at Newbury Park reported a high temperature of 108 degrees with a heat index of 106 degrees.

Excessive Heat in SANTA YNEZ VALLEY, CALIFORNIA
From 20-JUN-08 13:00:00 to 20-JUN-08 19:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The RAWS sensor at Los Prietos reported a high temperature of 114 degrees with a heat index of 109 degrees.

Excessive Heat in SAN LUIS OBISPO COUNTY INTERIOR VALLEYS, CALIFORNIA
From 20-JUN-08 14:00:00 to 20-JUN-08 19:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The automated sensor at Paso Robles reported a high temperature of 107 with a heat index of 105 degrees.