SOUTHERN CALIFORNIA — The National Weather Service issued a heat advisory for parts of Southern California, effective from 8 a.m. Tuesday until 9 p.m. Thursday. This advisory covers the eastern San Fernando Valley, eastern San Gabriel Mountains, Santa Clarita Valley, western San Fernando Valley, western San Gabriel Mountains, and the Highway 14 corridor.

The agency also forecast a heat spell for the region, which is expected to reach its peak on Wednesday. Higher than average humidity is anticipated to accompany this heat spell. National Weather Service meteorologist Devin Black said, "The humidity is going to make the weather a few degrees warmer than the standing temperature."

The forecast indicates temperatures will reach into the middle to upper 90s in the San Gabriel and San Fernando valleys on Wednesday. In contrast, temperatures in the Los Angeles basin, including Inglewood and Downtown Los Angeles, are expected to be in the low to mid 80s. There is also a threat of thunderstorms across Los Angeles County, particularly from Tuesday into Wednesday. After Thursday, temperatures are expected to cool down, though they will remain above average through the weekend.

The heat advisory provides guidance for residents during this period. The advisory states, "Take extra precautions when outside." It further advises individuals to "Wear lightweight and loose fitting clothing" and to "Try to limit strenuous activities to early morning or evening." The advisory also instructs the public to "Take action when you see symptoms of heat exhaustion and heat stroke."