STUDIO CITY ( — As heavy downpours soaked the Santa Clarita Valley on Wednesday afternoon, storm water flooded the Santa Clarita Wash and lightning strikes ignited brush fires on nearby hillsides.

Storms in the Santa Clarita Valley were just one part of the unusual weather happening around the Southland. Startlingly loud thunderclaps were heard in the Wrightwood area, with heavy downpours moving through other parts of San Bernardino and Riverside Counties.

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Lightning storms were also seen on Wednesday in the Antelope Valley of Los Angeles and Fountain Valley in Orange County.

The Huntington Beach pier was also closed due to lightning strikes. And a Costa Mesa school was flooded by heavy rains.

At least two large trees were toppled onto homes near Perris.

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Many parts of the Southland were also dealing with sweltering heat, as 25 communities — many of them inland or in valleys — exceeded the century mark. Long Beach also reached 103 degrees.

Wednesday’s extreme weather followed heavy rains on Tuesday, when some Victorville residents’ homes were inundated with as much as two feet of standing water, prompting calls for the city to answer for poor storm water drainage.

Much of the storm activity is being attributed to a tropical system making its way north.

Power company SoCal Edison said some customers will experience service interruptions overnight due to the heat and storms.

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This is a developing story. Check back for updates.