A strengthening ridge of high pressure is turning up the heat across Southern California, with triple-digit temperatures expected in several areas and little relief in sight through the coming week.
Temperatures Saturday are forecast to climb well above normal, with highs around 97 degrees in the Los Angeles area and 104 degrees in the Inland Empire, according to KTLA forecaster Kirk Hawkins.
“The heat is on in a very big way,” Hawkins said.
A heat advisory remains in effect for the Santa Clarita Valley, where temperatures are expected to reach about 101 degrees Saturday before climbing to 103 on Tuesday and 104 on Wednesday.
The Inland Empire will be even hotter, with temperatures forecast to rise from 104 degrees Saturday to 105 Tuesday and 106 Wednesday.
Ventura County is expected to reach around 90 degrees Saturday, with highs climbing to about 95 Tuesday.
Unfortunately for those hoping for a cooldown, Hawkins said there is “no relief in sight.”
A ridge of high pressure is expected to strengthen over the region in the coming days, keeping temperatures elevated. Many areas could begin the day with partly to mostly cloudy skies before sunshine takes over during the afternoon.
The coast will remain considerably cooler, with low clouds and fog largely confined to coastal areas. The marine layer Saturday morning was not expected to extend very far into the Los Angeles Basin.
Some monsoonal moisture will also work its way into the atmosphere, increasing the potential for showers and thunderstorms, particularly in the days ahead.
The prolonged heat could pose health risks, especially for children, older adults, pets and people who spend extended periods outdoors. Residents are urged to stay hydrated, limit strenuous activity during the hottest parts of the day and never leave children or pets unattended in vehicles.
Air quality is another concern. Hawkins said unhealthy conditions were reported around Redlands, while areas including Rancho Cucamonga were experiencing unhealthy air for sensitive groups Saturday morning. People with respiratory conditions were urged to take precautions.
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