Temperatures will climb above normal today and over the weekend on the westside, and a beach hazards statement — which is slightly less serious than a high surf advisory — will be in effect through this evening.
The above-normal temperatures are the result of strong high pressure, they said while continuing to assert, as they have this week, that the weather will not quite rise to heat wave levels.
Today’s temperatures will be 3-6 degrees above normal, and 4-8 degrees above normal Saturday and Sunday, said meteorologist Andrew Rorke. At the same time, not all that much wind is expected, except in Santa Barbara County, and the humidity level should be mostly at normal levels until next week, he said.
Temperatures in the mountains will reach hazardous levels
“The temperatures in the mountains will reach hazardous levels today, and by Saturday the Antelope Valley will also warm to hazardous levels,” according to an NWS statement.
“Temperatures will slowly cool to below hazardous thresholds Monday. The rest of the county will have above normal temperatures but there will only be isolated areas of hazardous temperatures, which is not enough to trigger an advisory.”
A heat advisory will be in effect from 1 p.m. today to 11 p.m. Sunday in the San Gabriels, where forecasters expect highs ranging from 95 to 103 at lower elevations and overnight lows in the 70s and lower 80s. A heat advisory will be in force from 1 p.m. Saturday to 11 p.m. Sunday in the Antelope Valley, where highs will range from 98 to 108, with overnight lows in the 70s.
A heat advisory means high temperatures and humidity levels “will combine to create a situation in which heat-related illnesses are possible,” according to the NWS. “Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.”
Additionally, forecasters said children, seniors and pets should never be left in a parked car in hot weather, even with the windows cracked open, because interior heat levels can quckly become deadly.
This weekend’s heat levels in the mountains and the Antelope Valley will create “an increased threat of heat-related illness, especially to those without access to air conditioning. Power outages are possible,” according to an NWS statement.
NWS forecast a mix of sunny and partly cloudy skies
The NWS forecast a mix of sunny and partly cloudy skies in L.A. County today and highs of 77 degrees in Avalon and at LAX; 84 in Long Beach; 85 in downtown L.A.; 88 on Mount Wilson; 91 in San Gabriel; 92 in Pasadena and Burbank; 97 in Saugus; 99 in Woodland Hills; 102 in Palmdale; and 103 in Lancaster. Saturday’s and Sunday’s highs will be generally 3 degrees higher, including in the San Gabriels and Antelope Valley.
Sunny skies were forecast in Orange County today, along with highs of 71 in Laguna Beach; 72 in San Clemente; 75 in Newport Beach; 86 in Anaheim, Irvine and Mission Viejo; 88 in Fullerton; and 89 in Yorba Linda. Saturday’s and Sunday’s temperatures will be around the same or marginally higher.
Beach hazards statement for L.A. County coast
Along the L.A. County coast, a beach hazards statement — which is slightly less serious than a high surf advisory — will be in effect through this evening. Forecasters expect surf of 3-6 feet, with sets of up to 7 feet, a statement said, adding that the highest surf will pound south-facing beaches.
“A beach hazards statement is issued when threats such as rip currents, longshore currents, sneaker waves and other hazards create life-threatening conditions in the surf zone,” according to the NWS.