Heat Advisory: Cuyama Valley; Santa Clarita Valley; Southern Salinas Valley; San Luis Obispo County Interior Valleys; San Luis Obispo County Mountains; Santa Ynez Mountains Western Range; Santa Barbara County Interior Mountains; Calabasas and Agoura Hills; Western San Fernando Valley; Eastern San Fernando Valley; Santa Susana Mountains; Southern Ventura County Mountains; 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 Ynez Mountains Western Range; Santa Barbara County Interior Mountains; Calabasas and Agoura Hills; Western San Fernando Valley; Eastern San Fernando Valley; Santa Susana Mountains; Southern Ventura County Mountains; Western San Gabriel Mountains and Highway 14 Corridor; Eastern San Gabriel Mountains; Los Angeles County San Gabriel Valley Severity: Moderate. Certainty: Likely. * WHAT...High temperatures of 92 to 105 expected, with most areas seeing peak heat on Wednesday and Thursday. Low temperatures are expected to range from the upper 60s to lower 70s at lower elevations to the mid 70s to lower 80s in the foothills and mountains. * WHERE...A portion of southwest California. * WHEN...From 10 AM Tuesday to 8 PM PDT Thursday. * IMPACTS...Hot temperatures may cause heat illnesses. Warmer than normal low temperatures will add to the heat discomfort. * ADDITIONAL DETAILS...The heat advisory may need to be extended into Friday for portions of the forecast area, but there remains considerable uncertainty at this time.