LOS ANGELES (CNS) – The Southland’s multi-day heat wave is expected to reach its peak Sunday with temperatures remaining above normal for much of the week, forecasters said.
Sunday “will be the hottest day of the week,” according to the National Weather Service. “Still, above normal temperatures are expected well into next week.”
An increased offshore flow starting Tuesday is expected to result in “2 to 4 degrees of cooling [in] most areas. Max temps, however, will remain 5 to 10 degrees above
normal,” the NWS said. “This and the above normal overnight lows will continue the heat danger.”
Saturday’s high reached 91 degrees in downtown Los Angeles and soared to 100 in Pasadena and Van Nuys and 106 in Lancaster and Palmdale, the NWS reported.
“The upper level ridge aloft will weaken after the weekend, but only by a little, which points to only small changes over the interior areas,” the NWS said Saturday. “Onshore pressure gradients are expected to strengthen some after Sunday, which points toward more noticeable lowering of temperatures, but it will remain warmer than normal for our warmest time of the year.”
Overnight lows will also remain elevated, which will add to the heat stress, forecasters said.
An extreme heat warning will be in effect through at least 8 p.m. Sunday for the Antelope Valley and nearby foothills, where temperatures of 104 to 114 degrees are possible.
In the western San Gabriel Mountains and the 5 and 14 Freeway corridors, a heat advisory was replaced by a more severe extreme heat warning that will remain in place through 8 p.m. Sunday, when highs are expected to range between 95 and 105 degrees.
An extreme heat warning will also be in effect through 8 p.m. Sunday for the Santa Monica Mountains Recreational Area, Calabasas, Agoura Hills, the San Fernando and San Gabriel valleys and the Los Angeles inland coastal area, including downtown. Those areas could see “dangerously hot conditions” with temperatures of 95 to 110 degrees, according to the NWS.
The eastern San Gabriel Mountains will be under a heat advisory through 8 p.m. Sunday, while Los Angeles County beaches, the Malibu coast and Palos Verdes Hills will be under a heat advisory through 8 p.m. Sunday. All of those areas could see temperatures as high as 100 degrees, forecasters said.
In Orange County, Anaheim reached 90 degrees Saturday and was expected to reach at least 89 on Sunday.
An extreme heat warning was in effect through 8 p.m. Sunday in the Santa Ana Mountains and foothills, and in Orange County inland areas. A less severe heat advisory was in effect for Orange County coastal areas through 8 p.m. Sunday, with highs expected in the mid-80s to lower 90s.
Public health officials urged residents to stay hydrated, limit outdoor activity during the hottest part of the day, seek air-conditioned spaces if their homes become too warm and check on older adults, children and others at greater risk of heat-related illness.
Officials also reminded residents to never leave children or pets unattended in vehicles even for a minute, as interior temperatures can turn deadly very quickly.
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