Cooler, Wet Weather Expected in Southern California After Record-Breaking March Heat

Southern California is set to experience a shift to cooler and wetter weather this week, following an unusually warm March and early April marked by extreme temperatures and wildfire activity. Forecasters from the National Weather Service (NWS) report that rain could begin as early as Thursday across Los Angeles and Ventura counties, with a 70% probability of precipitation continuing through Saturday.

Up to one inch of rain is anticipated in the region, according to Rose Schoenfeld, a meteorologist with the NWS. The forecast includes a gradual cooling trend expected to begin Monday and persist through Wednesday, before a marked drop in temperatures later in the week. "Thursday through the weekend will be on the cooler side for sure," Schoenfeld said.

The change in weather comes after a period of volatile conditions attributed to climate change, with experts noting dramatic swings in temperature and precipitation. March saw intense warmth and dryness following earlier heavy winter rains. Notably, Woodland Hills hit 102 degrees on March 19, surpassing the previous 1997 record, and Lancaster reached 93 degrees, breaking its own record from 2004. Inland areas also recorded temperatures above 90 degrees, contributing to an increased fire risk.

Earlier this month, strong Santa Ana winds fueled wildfires, including the Springs fire in Riverside County. Authorities from Cal Fire confirmed the blaze was 95% contained by Sunday evening, and all evacuation orders had been lifted.

The NWS has also advised that there is a 10% to 20% chance of thunderstorms over the coming weekend, with the possibility of heavier downpours, gusty winds, and localized mudslides. Mountain regions between 7,000 and 9,000 feet in elevation may see snowfall on Friday, although the exact accumulation remains uncertain.

Schoenfeld cautioned that while March's record heat was significant, it does not necessarily indicate a trend for the remainder of the month, and April temperatures remain uncertain. The weather service urges anyone heading to the mountains to avoid elevated areas during lightning and to shelter in vehicles for at least 30 minutes after thunder ceases for safety.

As of Monday, the focus remains on monitoring potential thunderstorms and rainfall throughout Southern California, with authorities continuing to provide updates as the forecast evolves.