SAN DIEGO (CNS) – Wednesday is expected to be the hottest day of the week in San Diego County, as a heat wave sweeping across Southern California continues to bring triple-digit, record-setting temperatures to the region.
The heat wave is being brought to the region by high pressure building over the desert Southwest, said National Weather Service forecaster Mike Watkins on Monday, the day the heat wave first struck.
"The high will begin to weaken Thursday and that will result in a few degrees of cooling in coastal and valley zones, but temperatures will still be well above average," according to a NWS statement.
Greater cooling will take place Friday through Sunday, the Weather Service advised.
Forecasted high temperatures for today were 85 to 95 for inland coastal areas, 95 to 105 for the inland valleys, 90 to 105 for mountain areas below 6,000 feet, and 103 to 117 for the deserts.
An excessive heat warning issued for Los Angeles County this week did not extend into San Diego because temperatures here are generally a bit warmer to begin with, according to the Weather Service.
Still, local visitors and tourists in the deserts, mountains and desert hikers, and anyone working outside this week should take precautions to prevent heat-related illness, the Weather Service advised.
The Weather Service also recommended that people in San Diego County avoid strenuous outdoor activity if possible, drink plenty of liquids, wear lightweight, loose-fitting clothing and a hat, and never leave children or pets in enclosed vehicles, even briefly.
In addition to the heat, high surf was expected in San Diego County Wednesday. The Weather Service issued a high surf advisory for the county until 11 p.m. Thursday, advising that surf heights today would be 4 to 7 feet, with large sets to 8 feet.
Surfers and swimmers should be prepared for much stronger than normal rip currents, according to the NWS.