Southwest US preps for 120 temps: Water, water, more water

Katrina Soto
June 18, 2017

Additionally, a heat advisory is in effect for the Pomona area, San Fernando Valley and Santa Clarita Valley from Monday to Tuesday, and for the San Gabriel Valley for Tuesday.

Because the weather will be hotter than was forecast on Thursday, the National Weather Service has issued a heat advisory.

A similar heat advisory in the mountain areas with elevations lower than 5,000 feet, which includes Julian and Pine Valley, will run from 11 a.m. Saturday to 9 p.m. Wednesday.

A potentially record-shattering heat wave is rolling into the Southwest U.S., threatening to bring 120-degree temperatures to parts of Arizona and California.

The Phoenix forecast office says all-time high temperature records could fall.

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But the hottest weather is expected in the deserts, where high temperatures were predicted to reach 107 to 112 degrees Friday and rise to 109 to 114 degrees Saturday, 111 to 116 degrees Sunday, 113 to 118 degrees Monday, 115 to 120 degrees Tuesday and 114 to 119 degrees Wednesday.

According to the National Weather Service, a heat advisory is issued within 12 hours of the onset of extremely unsafe heat conditions.

Residents are encouraged to take precautions these coming days, especially by people who participate in outdoor activities, older adults, caretakers of infants and children and those sensitive to heat, county officials said in a news release.

Authorities also warned against leaving children, seniors or pets in parked cars, which can heat up to lethal levels in just minutes, even with a window partially open. "Others who are frail or have chronic health conditions may develop serious health problems leading to death if they are exposed to high temperatures over several days".

"Always be hydrating with water, seeking shade and if you don't have air conditioning, seek a cooling center", Bartling said. People with heat sensitivities should take steps to protect themselves. Anyone overcome by heat should be moved to a cool and shaded location.

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