Santa Clarita residents should expect some very warm and humid conditions through Friday with the possibility of thunderstorms, according to the National Weather Service.

Temperatures on Thursday July 30 will produce weak winds and deep moisture that will pose a heightened risk of flash flooding, which may cause a possible flash flood, according to the National Weather Service, the threat might continue through Friday July 31.

As temperatures continue to rise well into the 90s and up to 100 degrees in many valley locations at lower elevations in the mountains, it is important to take care of pets who can be exposed to sun burns and the possibility of experiencing a heat stroke, according to the National Weather Service.

“Providing ample shade, fresh cool water, and laying out large ice packs are ways to keep your dog hydrated and safe from the heat,” said Dr. Jaimie Ronchetto of Cinema Veterinary Centre here in the Santa Clarita Valley.

It will become a bit more humid as well, and the chance of showers and thunderstorms will gradually overspread the entire region very late tonight and Thursday then continue into Thursday night, according to the National Weather Service. Some thunderstorms may produce heavy downpours, however, much of the time Thursday and Thursday night will likely be rain-free.

The combination of high temperatures and increased humidity will create dangerous conditions for those at risk of heat-related illness. This heat may impact participants and spectators for the Special Olympic World Games, especially in valley venues.

To prevent the risk of dehydration, Dr. Thomas Polucki suggests pre-hydrating with 16 ounces of water if you intend to exercise or go out into the heat.

“It is important to pay attention to how dry your mouth is because that is the best early indicator of dehydration,” Polucki said. “By the time you are thirsty, you are already dehydrated.”

After every 20 minutes of activity, you will need to re-hydrate with 8-16 ounces of electrolyte enhanced water. The range of 8-16 ounces depends on how much water you are losing from sweat and breathing, Polucki said.  Athletes who condition for strenuous activity in the heat weigh themselves before, during and after exercise. Every pound lost requires 16 ounces of electrolyte-enhanced water replaced.

On Friday, the slight chance of showers and thunderstorms will continue, mainly across interior sections, according to the National Weather Service. It will remain humid and very warm across the region. Shower and thunderstorm activity is expected to decrease this weekend and should be confined to the afternoon and evening hours across the mountains of Los Angeles, Ventura counties and the Antelope Valley. Temperatures are expected to be a few degrees above normal Saturday through Tuesday.