Southern Californians are facing another day of dangerous three-digit temperatures and increased fire risk in some areas as humid conditions continue to prevail throughout the region.
A Flex Alert that goes into effect on Monday afternoon is the third since Friday due to the heat. The warning is a call to residents to voluntarily save electricity in order to reduce the load on the state power grid.
A cooling trend is expected on Tuesday that will bring temperatures down to near normal levels for the rest of the week.
“The most important thing for the next few days is that we are actually on a cooling trend,” said NBC4 forecaster David Biggar. “It’s not very steep for the basin and the coast, but when we head towards Friday it will be a little cooler and the moisture will go away.”
Three-digit temperatures are expected throughout the week in Antelope Valley, where record temperatures were recorded in two cities for the second time in a row on Sunday.
On Monday, Californians will be asked to save electricity for the third time since Friday. Toni Guinyard will report for Today in LA on Monday, July 12, 2021.
Lancaster hit a record high of 113 degrees on Sunday and Palmdale a record high of 111. The Saturday highs of 112 in Palmdale broke the old record for that date of 109 in 2003, while the 113 in Lancaster broke the record of 112 in 1961 .
An overheating warning remained in effect in Antelope Valley through 9 p.m. Monday, with the NWS predicting “dangerously hot conditions” and temperatures of up to 115 degrees. In the region, too, temperatures will not drop dramatically overnight, with lows expected in the mid-1970s to the mid-1980s.
The Los Angeles County’s Department of Health issued an extreme heat warning by Tuesday in the Antelope Valley and Monday in the Santa Clarita and western San Fernando valleys. County officials said those without air conditioning at home can use cooling centers, with location information at https://ready.lacounty.gov/heat/ or by calling 211.
A less stringent heat warning is in place for the mountains of Los Angeles County, excluding the Santa Monica Mountain Range, through 9:00 p.m. Monday. Meteorologists said there could be temperatures as high as 109 degrees at lower elevations.
A heat warning was allowed to leak in the Santa Clarita Valley on Sunday at 9 p.m.
A sustained current on land will keep temperatures cooler along the coast.
LA Counties can take comfort in the fact that the high temperatures this weekend are still well below the impressive numbers recorded in Death Valley. The location in the Mojave Desert – known for having the hottest recorded temperature on earth of 134 degrees in 1913 – peaked at 130 degrees on Friday, Saturday and Sunday.
Meanwhile, the California Independent System Operator, who manages the state’s power grid, launched a Flex Alert – a call for voluntary conservation in hopes of reducing the stress on the system and preventing outages – from 4 p.m. to 9 p.m. Monday.