Southern California Heat Wave: Triple-Digit Temperatures and Fire Weather Concerns

Dominant High-Pressure System

• ☀️ A significant dome of high pressure is currently controlling the weather across the Southwest and expanding into Southern California.
• 📈 This system is the primary driver behind the rising temperatures and is causing conditions to be well above normal, especially inland.

Extreme Heat Warnings and Advisories

• ⚠️ An Extreme Heat Warning is in effect for low desert areas, with temperatures expected to reach or exceed 118 degrees Fahrenheit.
• 🌡️ Heat advisories are also in place for other regions, including Orange County, the Inland Empire, and mountain areas like Big Bear and Wrightwood, where temperatures will be in the mid-to-upper 80s.
• 💨 While LA and Ventura counties may not have official heat advisories, temperatures are still expected to be very hot, just shy of the advisory criteria.

Coastal Conditions and Forecast

• 🌊 Beach forecasts indicate 2-to-4 foot sets for Ventura and LA County beaches, with west and south swells of 3-to-5 feet for Orange County and San Diego.
• 🏖️ Coastal temperatures are forecast to be near 80 degrees in downtown LA.

Temperature Outlook

• 📉 A slight break in the heat is anticipated by late Saturday as the high-pressure system begins to break down.
• 🗓️ However, temperatures are not expected to return to near-average levels until next week.
• 🔥 The elevated temperatures and dry conditions are also contributing to increased fire weather conditions over interior areas.