A powerful heat wave is set to push temperatures to potentially record-breaking levels across Southern California this week, with the most intense heat expected Thursday and Friday — and little relief in sight through the start of next week.
According to the National Weather Service (NWS), a high-pressure system is driving mid-summer conditions into the region, with temperatures forecast to run 20 to 30 degrees above normal for March. Millions of residents from the coast to the deserts are under heat advisories as thermometers climb toward triple digits.
The NWS has issued a “High Risk for Heat Illness” warning, estimating that 16.8 million people across the region will feel the impact. Officials warn the extreme temperatures “will impact those who are sensitive to heat, especially those without cooling or hydration, and some health systems and industries.”
Ryan Kittell, a meteorologist with the NWS Los Angeles office, said the heat will drag on without meaningful breaks. “Any relief will be kind of minor and brief,” Kittell said. “It definitely makes it more taxing on folks.”
Sebastian Westerlink, a meteorologist with the NWS San Diego office, noted temperatures are expected to begin rising on Wednesday, with the heat peaking Thursday and Friday.
Specific forecasts for Thursday and Friday show highs reaching 97°F in Burbank and Anaheim, and up to 98°F in the Coachella Valley. Coastal and valley areas are expected to see widespread temperatures between 85°F and 99°F during the peak.
As reported by KTLA via Yahoo News, the NWS stated that “several calendar day records will be shattered, with some areas potentially breaking all-time records for March.”
The heat is being intensified by shifting wind patterns. Strong offshore Santa Ana winds are expected to develop Wednesday and Thursday, with gusts of 30 to 45 mph forecast across the 5 Freeway corridor and parts of Los Angeles and Ventura counties. Drivers of high-profile vehicles are warned of difficult conditions.
A Heat Advisory is in effect from 10 a.m. Thursday to 8 p.m. Friday for the coasts and coastal valleys of Ventura and Los Angeles counties.
While the worst of the heat is expected to peak Thursday and Friday, Saturday will remain dangerously warm, with highs between 82°F and 96°F for coastal and valley areas. The NWS says temperatures are expected to remain well above normal well into next week.
Residents are encouraged to limit outdoor activities between 10 a.m. and 8 p.m. during the heat wave. Anyone who must be outside should take frequent breaks in the shade or air conditioning and stay well hydrated.
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