Southern California will feel the heat through the weekend, with temperatures in parts of Riverside and San Bernardino counties expected to hit triple digits, prompting the National Weather Service to issue a heat advisory for the Inland Empire region on Friday.
“Temperatures in the Inland Empire will peak Thursday through Saturday,” said an NWS statement. “The combination of daytime highs in the upper 90’s to 104 degrees and overnight temperatures in the 70’s will increase heat risk in the region.”
The recommendation is valid until Saturday 8 p.m.
Highs in the Riverside metro area hit 100 degrees on Friday and Saturday, with lows in the mid-70s. In the Coachella Valley the average daily high will be 105 with lows in the mid 80’s while in the Temecula Valley the mercury will peak in the low 90’s with lows around 70.
Temperatures in San Bernardino County should hit similar highs of up to 103 on Saturday and 104 on Sunday. Due to the low chance of heavy rain and thunderstorms, a flood warning remained in effect until 1 a.m. Saturday.
Forecasters said a high-pressure ridge crossing the southwest is affecting weather patterns. However, low-pressure valleys over Arizona and Mexico continue to draw monsoonal moisture up from the south, stirring convective activity and generating thunderstorms east of the San Gorgonio Pass and south of the Anza Valley.
Over the next few days, scattered thunderstorms are forecast for the eastern Coachella Valley, Palo Verde Valley and higher elevations in the San Bernardino National Forest.
Temperatures will be warm and dry in Los Angeles County, with highs in the low to mid 80s in most metro areas, but could reach into the high 90s to low 100s in cities like Woodland Hills and Arcadia. Along the coast, high temperatures will persist into the mid-70s, with morning fog and patchy clouds expected to burn off by the afternoon.
Orange County will also feel some heat, with clear, sunny skies in inland cities and temperatures reaching into the low 90s in places like Anaheim and Yorba Linda. Cities closer to the ocean will experience temperatures similar to LA County in the mid-70s, with a possibility of early morning cloud cover.
“The flow of monsoon moisture into the area will continue into next week, with chances for mostly afternoon and evening thunderstorms, mainly in the mountains and deserts,” the NWS said.
Expected high temperatures for Saturday, according to the National Weather Service:
- Downtown Los Angeles: 96
- Fullerton: 91
- Irvine: 88
- Lagoon Niguel: 79
- Long Beach: 78
- Moreno Valley: 98
- Peris: 101
- Rotland: 100
- Rialto: 100
- Van Nuys: 99
- Weather: 93
The City News Service contributed to this report.
https://www.ocregister.com/2022/08/12/triple-digit-heat-forecast-for-most-of-the-inland-area-for-weekend/ Triple digit heat forecast for much of Southern California this weekend – Orange County Register