The first day of a heat wave produced extreme temperatures across Southern California, but forecaster say the real broiling will come over the weekend.
Heat records in Palmdale and Lancaster, which are 113 and 114 degrees, respectively, could also be broken this weekend,
The last significant heat wave to hit Southern California was five years ago, Seto said. In 2009, a heat wave baked Southern Californians for up to 14 days.
In Los Angeles, the heat is a particular concern to firefighters because it comes in a year of record dry conditions that have already sparked several major brush fires across the region.
Plus, fireworks went on sale in some areas beginning Friday, adding another fire danger. Fireworks are to be sold in 295 designated communities in the state through the Fourth of July.
Many weather experts this weekend will keep a special eye on Death Valley.
Across the Furnace Creek Resort in Death Valley, sighs of "God, it's hot," can be heard in a variety of languages.
International visitors flock to the motel in Furnace Creek, where the hottest temperature in the world -- 134 degrees -- was recorded nearly 100 years ago, on July 10, 1913.
"It's very warm, and people are coming here to see what it feels like," said Ann Wegner, executive administrative assistant for the resort. "I don't think anybody can really be prepared.
"Even if the air is blowing, it's hot," she said, comparing the breeze to air coming out of a hot oven.
Temperatures in Death Valley are expected to reach 129 degrees Sunday and Monday, breaking the record for the hottest June temperature -- 128 degrees, set June 29, 1994, said Chris Stachelski, a
Death Valley is typically about 12 degrees warmer than Las Vegas, with normal high temperatures hovering around 114 degrees and rising to about 115 at the beginning of July, he said.
An excessive heat warning is in place for rangers and visitors to the park. People going to or through Death Valley should travel during the coolest parts of the day and have water and food with them in case of a breakdown. Travelers should be prepared for the environment in the event something happens that strands them, Stachelski said.
Those who venture out to sightsee should avoid long walks, especially during the hottest part of the day; wear sunscreen; stay hydrated; and know their limits. Visitors should go to the coolest parts of the park, which are at higher elevations, Stachelski said. The elderly, small children and those with medical issues should stay indoors.
"If you're not used to that kind of heat, after a while you can succumb to the elements," he said.
In Death Valley, July is the month that statistically has the most deaths and injuries such as dehydration. The people most likely to get injured are those who don't know their limits, wander and become disoriented.
"Don't challenge yourself," Stachelski said.
The last recorded heat-related death in the area was July 26, 2009; statistics for later than 2011 were not available. Most heat-related deaths involved people ages 60 and older.
July is likely to have a "surplus of heat" as well, with a 38% chance for above-normal temperatures, Stachelski said.
At the Furnace Creek Resort, there's not much activity, Wegner said. Guests are staying by the pool and indoors. This weekend, the resort will have cool-down stations and misters out for visitors.
For those going on day trips, Wegner said, remember that "nothing works in this kind of heat." Cars overheat and cell service is limited, she said, so let someone know where you're going and don't go too far away.
On the bright side: At least there's no humidity, she said with a laugh.
"I don't think you ever get used to [the heat]. You know it's coming and you dread it," she said. "You're sweating, trust me. You're sweating."
Several agencies opened cooling centers — air-conditioned public facilities that can be used to escape the heat. Information about the centers can be found by dialing 211, the county's information line. Click on the following link to find an interactive map of the centers.