Expires:201709032100;Remove:201709032100;387476 FPUS76 KLOX 031857 NOWLOX Short Term Forecast National Weather Service Los Angeles/Oxnard CA 1157 AM PDT Sun Sep 3 2017 CAZ054-088-547-548-032100- Los Angeles County Mountains excluding the Santa Monica Range- Santa Clarita Valley-Los Angeles County San Fernando Valley- Los Angeles County San Gabriel Valley- Including the cities of Acton, Mount Wilson, Sandberg, Santa Clarita, Newhall, Valencia, Woodland Hills, Northridge, Burbank, Universal City, Pasadena, San Gabriel, and Pomona 1157 AM PDT Sun Sep 3 2017 .NOW... Showers and thunderstorms are starting to develop over the San Gabriel Mountains late this morning. With the steering winds moving from east to west, any shower and thunderstorm activity will drift toward the San Fernando and San Gabriel Valleys. The strongest storms were about 5 miles east of San Fernando and moving west at 25 mph. Showers are likely this afternoon with isolated thunderstorm possible. Brief heavy rainfall, small hail, dangerous lightning, and gusty and erratic winds are possible. Persons outdoors should move indoors or seek safety in a vehicle when these storms approach. $$ Hall