Parts of Southland slammed by rain, thunder; flooding reported

Amid another day of triple-digit heat, some parts of Southern California were being hit by heavy rain and thunderstorms Tuesday afternoon.

The National Weather Service issued a flash-flood warning for Lake Elisnore, Hemet and surrounding areas as heavy bands of rain moved in. A second warning was issued for the Coto de Caza and other hillside communities in Orange County.

The National Weather Service issued a severe thunderstorm warning for Riverside, Corona, Mission Viejo and surrounding areas through 5 p.m.

Lake Elisnore was particularly hard hit by the rains. CalFire sent out photos on Twitter showing flooding damage at Elisnore High School, including downed power lines and trees. Parts of the campus were flooded.

KTLA showed images of major street flooding in Ontario, Lake Elisnore and elsewhere.

Temperatures across Southern California have remained in the triple digits as a weak off-shore flow holds cooler sea breezes at bay.

Several more temperature records could fall Tuesday, including one set in 1909 when downtown Los Angeles hit 103 degrees. Woodland Hills, meanwhile, is expected to match its 14-year-old record of 109 degrees, and Burbank could top out at 105 degrees, a record set in 1984.