More Record Heat Possible As Southland Sizzles - FOX 10 News | fox10phoenix.com

More Record Heat Possible As Southland Sizzles

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Los Angeles, CA -

(FOX 11 / CNS) The heat wave gripping the region stretched into a new and potentially perilous week today, with more high-heat records expected amid an uncomfortable onset of high humidity.

"It will remain hot across much of Southwestern California through at least Tuesday,'' the National Weather Service said in an advisory. Along with "record or near-record'' high temperatures, "there will be an increase in moisture, which will result in muggy conditions in some areas.''

In Los Angeles County, an excessive heat warning was scheduled to be in effect in the Santa Clarita Valley until 10 p.m. today and in the Antelope Valley and the San Gabriel Mountains until 9 p.m. Tuesday.

Forecasters warned of afternoon temperatures of between 104 and 114 Fahrenheit in the Antelope Valley, between 100 and 112 in the Santa Clarita Valley, and between 100 and 108 in the Los Angeles County portion of the San Gabriels below the 4,500-foot level.

"Higher mountain elevations will also see temperatures approach record levels with temperatures well in the 80s and 90s'' and nighttime temperatures dipping only into the 70s and lower 80s, according to an NWS advisory.  In recent days, heat records have been set in the region, including Lancaster, where the high of 115 at Fox Field Sunday represented not just a record for a June 30 but an all-time high, surpassing the 114 degrees recorded
on July 18 and 19, 1960, the NWS reported.

In Palmdale, Sunday's high of 111 tied the record set on June 30, 1994, while the 106 recorded in Sandberg broke the record of 98 set on that date in 1950, according to the NWS.

The weather service stressed that the prevailing conditions can have perilous health outcomes.

"Children, the elderly and people with chronic ailments are the most susceptible to heat-related illness,'' the NWS warned in an advisory. "Heat exhaustion, cramps, or, in extreme cases, heat stroke can result from prolonged exposure to these conditions.''

The NWS urged area residents to avoid strenuous activity in the heat, including hiking and mountain biking during the warmest part of the day. People who must work outdoors should schedule frequent rest breaks in shaded areas or air-conditioned spaces, it said.

The NWS also reminded motorists never to leave children, the elderly or pets in an enclosed parked vehicle, even with the windows cracked open, because, according to an advisory, "temperatures can quickly rise to life- threatening levels.''

The NWS forecast highs today of 73 in Newport Beach; 76 in Avalon; 80 at LAX; 83 in Long Beach; 87 in Anaheim, downtown L.A. and on Mt. Wilson; 91 in San Gabriel; 94 in Pasadena; 95 in Burbank; 104 in Woodland Hills and Saugus; 108 in Palmdale; and 109 in Lancaster. A slight cooling is expected Wednesday.

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