A surge of subtropical moisture interacting with upper-level low pressure off the coast will create a slight chance of thunderstorms over Los Angeles County and coastal waters this morning, National Weather Service forecasters said.
The chance of thunderstorms this morning was set at 20percent. By this afternoon, any isolated thunderstorms should be confined to the San Gabriel Mountains and the Antelope Valley, they said.
“Any thunderstorms over land will be capable of producing dangerous cloud-to-ground lightning, gusty and erratic winds, and isolated fire starts,” according to an NWS statement. “Remember, if the thunder roars, go indoors.”
The weather service forecast mostly cloudy skies in L.A. County today and highs of 75 in Avalon; 81 at LAX and on Mount Wilson; 84 in Long Beach; 87 in downtown L.A., Palmdale and San Gabriel; 89 in Burbank, Lancaster and Saugus; 90 in Pasadena; and 94 in Woodland Hills.
Temperatures will remain at the same level Wednesday in some communities and go down in others, dip by several more degrees Thursday, then begin to climb back up Friday and gain several degrees on Saturday.
Temperature highs in Woodland Hills will be 94 degrees Fahrenheit today and Wednesday, 86 Thursday, 88 Friday, 102 Saturday, 105 Sunday, and 102 Monday. Highs in downtown L.A are forecast to be 87 today, 84 Wednesday, 78 Thursday; 80 Friday, 90 Saturday; 92 Sunday and 87 Monday.
Partly cloudy skies were forecast in Orange County today, along with highs of 76 in Newport Beach and San Clemente; 78 in Laguna Beach; 83 in Anaheim and Mission Viejo; 84 in Irvine and Fullerton; and 87 in Yorba Linda. Orange County highs will follow roughly the same pattern as in Los Angeles County over the coming days. Yorba Linda will be 87 today, 86 Wednesday, 79 Thursday, 81 Friday, 90 Saturday, 92 Sunday and 91 Monday.
On Monday, a record high for a September 19 was set at Sandberg in the Antelope Valley, beating the record of 93 set in 2,000.
