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LOS ANGELES (CNS) - Temperatures will be ramping up in the Southland over the next couple days, reaching well-above-normal levels in some valley and mountain areas.
The warming trend began Tuesday afternoon, with conditions "turning significantly warmer away from the coast," according to the National Weather Service.
"A hot air mass will remain in place across the interior valleys for much of this week, with temperatures well above normal for this time of year," forecasters said. "Closer to the coast, the warming trend will be moderated due to persistent night through morning low clouds and fog and a moderate to strong onshore flow."
The warmest temperatures are anticipated in the Antelope Valley through Thursday, according to the NWS. The Antelope Valley was expected to reach triple digits as early as Tuesday afternoon, which would be nine days earlier than the usual start of 100-degree temperatures in the area.
"If any site fails to reach 100 degrees today (Tuesday), it is virtually certain to happen on Wednesday as (forecasts) indicate a greater than 95% chance of hitting 100 degrees on Wednesday and a 90% chance or higher on Thursday," according to the NWS.
An excessive heat warning will be in place in the Antelope Valley and Antelope Valley foothills from 10 a.m. Wednesday through 8 p.m. Thursday, noting that some areas could reach up to 107 degrees, accompanied by warm overnight low temperatures.
Forecasters issued their standard warnings for excessive heat, reminding people to drink plenty of liquids, stay indoors as much as possible and avoid leaving children or pets in vehicles.
"Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke," forecasters said.
Cooler conditions are expected to return by Friday into Saturday.