Elevated humidity will remain firmly in place for the valley, especially along the Colorado River Valley over the next two days, FOX5's Ken Smith said.

According to Smith, high pressure to the east is pumping moisture from the Gulf of California, right up to the Colorado River Valley and is spilling into the Las Vegas area. Due to the continuous flow of smoke from the California wildfires, The Clark County Department of Air Quality extended the air quality advisory to Aug. 13 for elevated levels of smoke and ozone.

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Thunderstorm chances will be highest in the mountains surrounding the valley and areas along and east of Interstate-15, Smith said. There is a slight possibility of storms drifting from the mountains and into the valley Friday afternoon. According to Smith, thunderstorm chances are expected to decrease for Las Vegas starting on Sunday.

However, a low-pressure system from the Pacific Northwest may influence the high-pressure system that has been responsible for rotating monsoonal moisture into southern Nevada, Smith said. Elevated levels of smoke will continue to be an issue for the region.

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