Heat Advisory: Cuyama Valley; Santa Clarita Valley; Southern Salinas Valley; San Luis Obispo County Interior Valleys; San Luis Obispo County Mountains; Santa Barbara County Interior Mountains; Western San Fernando Valley; Eastern San Fernando Valley; Santa Susana Mountains; Southern Ventura County Mountains; Northern Ventura County Mountains; Interstate 5 Corridor; Western San Gabriel Mountains and Highway 14 Corridor; Eastern San Gabriel Mountains; Los Angeles County San Gabriel Valley

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Heat Advisory — Cuyama Valley; Santa Clarita Valley; Southern Salinas Valley; San Luis Obispo County Interior Valleys; San Luis Obispo County Mountains; Santa Barbara County Interior Mountains; Western San Fernando Valley; Eastern San Fernando Valley; Santa Susana Mountains; Southern Ventura County Mountains; Northern Ventura County Mountains; Interstate 5 Corridor; Western San Gabriel Mountains and Highway 14 Corridor; Eastern San Gabriel Mountains; Los Angeles County San Gabriel Valley Severity: Moderate. Certainty: Likely. * WHAT...Temperatures from 90 to around 100 expected...except up to 103 across the warmest mountains and interior valleys of San Luis Obispo county. * WHERE...Interior mountains of Los Angeles, Ventura, Santa Barbara, and San Luis Obispo counties as well as the San Fernando, San Gabriel, Santa Clarita, Cuyama and San Luis Obispo interior valleys. * WHEN...From 10 AM Tuesday to 8 PM PDT Thursday. * IMPACTS...There is a high risk for heat illness for sensitive populations including the very young, the very old, those without air conditioning, and those active outdoors. * ADDITIONAL DETAILS...The warmest temperatures with this event are expected to occur Wednesday and Thursday afternoons, with additional locations potentially being needed to be added to this advisory with time. Temperatures are expected to cool slightly after Thursday in some locations, but will remainabove normal into the following week.