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Hot and humid weather hits SoCal this week

The heat wave in SoCal will feel even hotter than the last one, thanks to increased humidity.
The heat wave in SoCal will feel even hotter than the last one, thanks to increased humidity.
Stock photo by Patty S./santapati via Flickr Creative Commons

Los Angeles will be hot, sticky and smoggy for the remainder of the week.

The National Weather Service issued a heat advisory for the San Gabriel Mountains this morning. Temperatures in the valleys were expected to hit triple digits Wednesday. The heat wave will continue through the weekend, peaking on Friday.

https://twitter.com/NWSLosAngeles/status/882628033538117632

Unlike the previous heat wave, this one is going to be humid. Forecasters predict a monsoonal flow could bring some rain to L.A. County mountain and valley locations Wednesday, with a possibility of thunderstorms across the Antelope Valley.

Because of the humidity, residents are less likely to get any relief from the heat at night. Residents in the valley can expect overnight temperatures to remain in the mid-70s to low 80s.

Officials have also issued an advisory for unhealthy air quality in the Inland Empire and San Bernardino Mountains. There are unhealthy levels of ground-level ozone, which is the primary component of smog.

"On the Fourth of July and into the fifth of July, typically we can see levels also unhealthy for sensitive groups for fine particulates, and that is due to fireworks," AQMD spokesman Sam Atwood said. 

Atwood said people who have asthma should avoid vigorous exercise outdoors, but pollution levels should subside by Thursday.