SoCal cools down this week, but don’t get too comfortable

Southern Californians are in for a little relief this week after another muggy weekend.

The region is expected to experience a slight cooling trend over the course of the week, though forecasters say conditions will still be hotter than normal and continue to put people at risk of heat-related illness.

Highs in most of L.A. and Orange counties will be in the 80s and 90s through Friday. Some interior parts of L.A. County, much of the Inland Empire and the region’s deserts are expected to hit triple digits.

Don’t get too used to the — somewhat — milder temperatures either. Forecasters say the heat will soon return with a vengeance.

The high pressure system that’s been driving much of this summer’s weather has retreated eastward, forecasters say, allowing for the cooling trend. But the system is expected to migrate back toward Southern California this week and bring the heat with it.

Temperatures will tick up steadily from Friday to Sunday, when parts of the San Fernando and San Gabriel valleys are expected to reach 100 degrees or higher.

Dangerous beach conditions

Meanwhile, forecasters continue to warn of dangerous currents and surf at the beach.

For the last several weeks, Southern California’s beaches have been pummeled by strong rip currents, big waves and surging tides.

Officials are particularly concerned about the hazardous conditions as people flock to the beach to escape the heat

Lifeguards performed nearly 2,000 rescues over the weekend in L.A. County alone, according to the county Fire Department’s lifeguard division.

And the upcoming weekend is expected to present similar hazards for beachgoers. South-facing stretches of coastline will experience the most severe currents and waves.

Officials recommend checking surf conditions before heading to the beach and, if you do go in the water, stay near lifeguards and listen to their instructions. It’s also a good idea to stay off of tidal rocks and jetties.

If you end up caught in a rip current while swimming, relax, stay calm and float as much as possible to conserve energy. To escape the current, swim parallel to the beach, then at an angle toward the beach. Do not try to swim against the current. If you can’t reach the shore, call and wave for help.

The surf conditions are being driven by a series of tropical storms churning hundreds of miles to the southeast in the Pacific Ocean.

One of them, Hurricane Fausto, has been pushing its storm surge towards Southern California since it formed off Central America on July 16. Since then it has moved toward Hawaii, becoming a Category 2 hurricane over the weekend. It is now weakening.

This week, another storm, Hurricane Genevieve, is running parallel to the Mexican coast about 500 miles off the tip of Baja California. Genevieve was briefly classified as a Category 5 hurricane on Monday.

The storms, along with swells originating from storms in the Southern Hemisphere, have combined to create dangerous surf here.

“It's been definitely a long period of very frequent and hazardous rip currents,” said National Weather Service meteorologist Bryan Lewis.

There is also a chance the surge could cause minor coastal flooding.