"California Braces for Intense Heat Wave During July 4th Weekend"

San Diego County is experiencing its first summer heat wave, with temperatures expected to rise significantly over the Fourth of July weekend. A heat advisory has been issued for the mountains and an excessive heat warning for the deserts. Inland locations can expect temperatures in the low 90s, while the coast will be relatively cooler due to the marine layer. The heat, combined with gusty winds and low humidity, increases the risk of wildfires. High pressure may weaken next week, bringing some relief.