The heat wave that’s been broiling the Southland will linger for at least another day, with forecasters Thursday extending excessive heat warnings through Friday night.

“Excessively hot conditions will continue through Friday, with areas of smoke and dense fog over portions of coastal waters,” according to the National Weather Service. It will cool some this weekend into next week, but temperatures will remain above normal.

“Afternoon thunderstorms will be possible in some mountains and interior valleys, especially over the weekend, with a threat of flash flooding in stronger storms,” the NWS stated.

Excessive heat warnings will remain in effect until 10 p.m. Friday in the Santa Clarita, San Fernando and San Gabriel Valleys, with forecasters warning of “dangerously hot conditions,” including daytime temperatures between 95 and 105.

The warning will also be in effect until 10 p.m. Friday in the Los Angeles County mountains, Antelope Valley and the Santa Monica Mountains, where temperatures are predicted between 90 and 108.

A less serious heat advisory will be in effect until 10 p.m. Friday in the coastal region, which stretches into downtown. Forecasters said temperatures in that area would range between 85 and 95.

Warm conditions were expected to continue in the evening and overnight hours in all areas.

The NWS anticipated “daytime highs and overnight lows to be similar to a couple of degrees lower than (Thursday).”

Woodland Hills was the hottest spot in Los Angeles County Wednesday, according to the National Weather Service, with the high reaching 110, a record for Aug. 19. The previous record was 109 set in 1992.

The 109-degree high at Palmdale tied the record for this date set in 1950. The high for this date was also tied at UCLA, where the temperature reached 90, matching the record set in 1990.

No additional Flex Alerts calling for energy conservation were in effect Thursday and none were on tap yet for Friday. The alerts were in effect each afternoon this week, but conservation efforts and favorable weather conditions contributed to avert rolling power blackouts, like those that occurred late last week when the heat wave began.

Several cooling centers remain open across Los Angeles County for those without air conditioning, but their capacity was limited due to social distancing requirements amid the coronavirus pandemic. Their locations can be found at lacounty.gov/heat.

Information about cooling center in Los Angeles can be found by calling 311 or visiting laparks.org/emergency/cooling-center-activation.

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