How long will heat wave linger over Southern California?

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LOS ANGELES — An excessive heat warning went into a fourth day in most of the Southland Thursday, but conditions improved considerably along the L.A. County coast and in the city of Los Angeles.
However, while L.A. conditions improved, the excessive heat warning in effect in the rest of L.A. County was extended by a day and is now due to expire at 8 p.m. Friday.
Along the coast, a high surf advisory scheduled to have been in effect in L.A. and Orange counties unti