Photos: Temperatures soar across Southland, elevating fire danger

A person dives off a boat
Dartagnan Molinar, 38, is enjoying taking his children Noah Molinar, 6, middle, and Lulu Molinar, 2, front, for a ride on his skateboard on Thursday, Oct. 1, 2020 in Pasadena where temperatures reached 106 degrees at 3pm.
(Gina Ferazzi / Los Angeles Times)

Temperatures soared across the Southland on Wednesday, the hottest day of a weeklong heat wave that’s combining with low humidity to create elevated fire danger.

A heat advisory will be in effect through Friday in the Southland, with temperatures climbing into triple-digit territory not only in the valleys but also in Orange County and other inland areas, according to the National Weather Service.

The heat prompted the California Independent System Operator, which manages the state’s power grid, to issue a flex alert that will be in effect from 3 p.m. to 10 p.m. Thursday. The alert urges residents to conserve energy wherever possible to reduce strain on the grid and prevent possible rolling blackouts.

CLAREMONT
Wearing masks because of the global pandemic twins Chloe and Claire Wainwright, both 9, of Covina, play in a tree in Memorial Park in 103 degree heat in Claremont.
(Francine Orr/Los Angeles Times)
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The silhouette of a person in front of a tile mosaic wall
A pedestrian walks on the shady side of the street in the hot afternoon sun in Santa Monica.
(Genaro Molina / Los Angeles Times)
PERRIS, CA
Boaters cool off in the 105-degree temperature at Lake Perris on Wednesday. A heat advisory is in effect through Friday in the Southland, with temperatures expected in the triple digits.
(Gina Ferazzi/Los Angeles Times)
A person walks in front of signs that say We need your vote, Black lives matter, Black votes matter
The temperature along Compton Boulevard hit 101 degrees by midday Wednesday.
(Luis Sinco / Los Angeles Times)
Swimmers in bright caps use kickboards
Members of the Long Beach Poly High School swim team hold an outdoor practice in Alamitos Bay as the temperature in Long Beach soared to 104 degrees on Wednesday.
(Luis Sinco / Los Angeles Times)
A person walks with a green popsicle
A woman enjoys a popsicle along Atlantic Avenue in Long Beach on Wednesday.
(Luis Sinco / Los Angeles Times)
Orange sun shines through trees next to a greeway
Traffic streams along the 405 Freeway in Long Beach.
(Luis Sinco / Los Angeles Times)
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Silhouette of a person throwing a football in front of a yellow sun at the beach
A beachgoer tosses a football into the air at Bolsa Chica State Beach on Wednesday.
(Luis Sinco / Los Angeles Times)
A man in a high-vis vest drinks water while sitting among pallets of cardboard boxes
Lionel Taplin, a worker with L.A. County Parks and Recreation, takes a drink of water while the Los Angeles Regional Food Bank delivers boxes of food under the hot sun at Saybrook Park in Montebello on Wednesday.
(Genaro Molina / Los Angeles Times)
An overturned canopy in a lake
A man rushes after his floating canopy after it got swept it into Lake Perris on Wednesday.
(Gina Ferazzi / Los Angeles Times)
People play in the surf
A couple stay cool in the surf as hot weather prevailed over Santa Monica on Wednesday.
(Genaro Molina / Los Angeles Times)
A woman in a high-vis vest sits on a wooden pallet next to cardboard boxes
L.A. County worker Caitlyn Gonzales takes a breather while the Los Angeles Regional Food Bank delivers boxes of food at Saybrook Park in Montebello on Wednesday.
(Genaro Molina / Los Angeles Times)
A man rides a surfboard
A man rides a hydrofoil surfboard in the ocean off Playa Del Rey.
(Genaro Molina / Los Angeles Times)
A swan boat in Echo Park lake under a red canopy
Echo Park Lake provides a cool spot for paddleboaters on Wednesday.
(Brian van der Brug / Los Angeles Times)
A mom and her young boys in life vests play in the shallow water of a lake
The Sanchez family of Anaheim searches for small pebbles while cooling off in Lake Perris on Wednesday.
(Gina Ferazzi / Los Angeles Times)